1.8 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 1.8 carat princess lab grown diamonds usually range from $359 to $14,787, with an average price of $848.In the last month, prices for these diamonds are down 3.1%.Compare 1,557 verified listings across 9 retailers tracked by CaratRadar.
1.8 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,557 verified 1.8-carat princess lab grown diamonds listed across 9 online retailers. Prices in this segment range from $359 to $14,787, with an average asking price of $848 and a median of $660.
The price spread of $14,427 (97.6% from highest to lowest) highlights why comparing identical certified diamonds across multiple retailers matters. Two identical certified diamonds can differ by hundreds or even thousands of dollars depending on the retailer.
These figures are based on our latest daily market data, matched by certification lab and certificate number across retailers, so you are comparing the exact same diamond.
1,557 diamonds tracked in this segment
Price range: $359 to $14,787
Average price: $848
Median price: $660
Available across 9 retailers
Savings potential: up to 97.6%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,557
$359
$848
$660
$14,787
Price History
Price Comparison Matrix
Live Listings
See all listingsCompare current retailer offers for this exact segment and open any listing for full details.
IGISave 71.5%1.75ct | Princess | G | VVS2 | Ideal
From $632
Compare at $2,220
IGISave 64.1%1.75ct | Princess | G | VS1 | Ideal
From $3,180
Compare at $8,852
IGISave 70.4%1.75ct | Princess | F | VS2 | Ideal
From $612
Compare at $2,070
IGISave 76.9%1.75ct | Princess | F | VVS1 | Very Good
From $802
Compare at $3,470
IGISave 18.4%1.75ct | Princess | G | VS1 | Excellent
From $626
Compare at $767
IGISave 73.4%1.75ct | Princess | F | VVS2 | Ideal
From $804
Compare at $3,020
IGISave 80.4%1.75ct | Princess | G | VVS2 | Ideal
From $548
Compare at $2,800
IGISave 42%1.75ct | Princess | E | VVS2 | Ideal
From $656
Compare at $1,132
IGISave 76.9%1.75ct | Princess | F | VS1 | Ideal
From $640
Compare at $2,770
GIASave 82.9%1.75ct | Princess | D | VVS2 | Excellent
From $929
Compare at $5,430
IGISave 55.7%1.75ct | Princess | F | VS1 | Ideal
From $3,818
Compare at $8,611
IGISave 79.4%1.75ct | Princess | F | VS2 | Ideal
From $672
Compare at $3,266
IGISave 81.5%1.75ct | Princess | F | VS1 | Ideal
From $672
Compare at $3,625
IGISave 80.4%1.75ct | Princess | E | VVS2 | Ideal
From $660
Compare at $3,365
IGISave 60.4%1.75ct | Princess | F | VS2 | Ideal
From $551
Compare at $1,391
IGISave 62.4%1.75ct | Princess | F | VVS2 | Very Good
From $701
Compare at $1,866
IGISave 75.7%1.75ct | Princess | F | VS1 | Ideal
From $672
Compare at $2,770
IGISave 31.4%1.75ct | Princess | E | VVS2 | Ideal
From $777
Compare at $1,132
IGISave 31.4%1.75ct | Princess | F | VVS2 | Ideal
From $745
Compare at $1,085
IGISave 73.8%1.75ct | Princess | D | VS1 | Very Good
From $553
Compare at $2,110
IGISave 80.3%1.75ct | Princess | F | VVS1 | Ideal
From $688
Compare at $3,500
IGISave 75.7%1.75ct | Princess | F | VS1 | Ideal
From $563
Compare at $2,320
IGISave 79.2%1.75ct | Princess | D | VS1 | Ideal
From $664
Compare at $3,190
IGISave 44.7%1.75ct | Princess | E | VVS2 | Very Good
From $626
Compare at $1,132
IGISave 81.3%1.75ct | Princess | E | VVS1 | Ideal
From $560
Compare at $2,990
IGISave 65.5%1.75ct | Princess | E | VVS2 | Very Good
From $893
Compare at $2,590
IGISave 68.8%1.75ct | Princess | E | VS1 | Ideal
From $639
Compare at $2,050
IGISave 81.3%1.75ct | Princess | E | VVS2 | Ideal
From $630
Compare at $3,365
GIASave 52.8%1.75ct | Princess | D | VVS1 | Excellent
From $3,490
Compare at $7,390
GIASave 52.8%1.75ct | Princess | D | VVS1 | Excellent
From $3,490
Compare at $7,390
IGISave 61.6%1.75ct | Princess | J | SI1 | Ideal
From $1,912
Compare at $4,975
IGISave 71.9%1.75ct | Princess | G | VS1 | Ideal
From $692
Compare at $2,460
IGISave 71.9%1.75ct | Princess | G | VS1 | Ideal
From $692
Compare at $2,460
IGISave 77.6%1.75ct | Princess | F | VS1 | Ideal
From $628
Compare at $2,800
IGISave 78.9%1.75ct | Princess | E | VS1 | Ideal
From $625
Compare at $2,970
IGISave 80.9%1.75ct | Princess | G | VS1 | Ideal
From $672
Compare at $3,519
IGISave 71.8%1.75ct | Princess | G | VS1 | Ideal
From $692
Compare at $2,450
IGISave 80%1.75ct | Princess | H | VVS2 | Ideal
From $534
Compare at $2,670
IGISave 71.2%1.75ct | Princess | G | VVS2 | Very Good
From $725
Compare at $2,520
IGISave 38.9%1.75ct | Princess | F | VS1 | Very Good
From $495
Compare at $810
IGISave 73%1.75ct | Princess | D | VVS2 | Ideal
From $1,064
Compare at $3,940
IGISave 76.7%1.75ct | Princess | E | VS1 | Ideal
From $745
Compare at $3,190
IGISave 79.8%1.75ct | Princess | D | VS1 | Ideal
From $514
Compare at $2,550
IGISave 76.2%1.75ct | Princess | F | VVS2 | Ideal
From $719
Compare at $3,020
IGISave 39.2%1.75ct | Princess | G | VS1 | Excellent
From $989
Compare at $1,626
IGISave 24%1.75ct | Princess | E | VS2 | Ideal
From $516
Compare at $679
IGISave 80.6%1.75ct | Princess | D | VS1 | Ideal
From $626
Compare at $3,220
IGISave 62.2%1.75ct | Princess | E | VS2 | Ideal
From $578
Compare at $1,526
IGISave 85.4%1.75ct | Princess | D | VVS2 | Excellent
From $551
Compare at $3,770
IGISave 85.4%1.75ct | Princess | D | VVS2 | Excellent
From $551
Compare at $3,770
Entry pricing in this category starts around $359.
What to Know When Shopping for 1.8 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $14,427 or more.
- Focus on the 4Cs that matter most to you. Color and clarity grades drive price more than cut in many segments, but cut affects sparkle the most.
- The median price of $660 is a useful benchmark. If you see a deal significantly below this, verify the retailer's reputation and return policy.
- Consider eye-clean alternatives. Moving one clarity grade down (e.g., VS2 to SI1) can save 10-15% with no visible difference to the naked eye.
- Lab-grown diamonds offer excellent value. Ensure the stone comes with a GIA or IGI certificate confirming it is laboratory-grown.
- Check shipping, insurance, and return policies. The lowest sticker price is not always the best deal once you factor in total cost of purchase.
- Princess-cut diamonds are prone to chipping at the corners. Look for protective prong settings and avoid stones with visible inclusions near the edges.
Frequently Asked Questions
We currently track 1,557 comparable stones in this segment. Prices start around $359 and go up to $14,787.
Based on the latest market data, the average asking price is about $848 with a median around $660.
The observed spread is roughly $14,427 across tracked listings, which is about 97.6% from highest to lowest offer in this bucket.
We refresh pricing data daily so these pages stay current with market changes.
Based on our data, the median price is $660, which represents the midpoint of the market. Anything below this figure from a reputable retailer is a solid deal.
We currently track this stone category across 9 online retailers, giving you a broad view of the competitive landscape.
For most buyers, color differences below G are hard to detect once set in a ring. Clarity grades of VS2 and above are typically eye-clean. Prioritize cut quality for maximum brilliance, then balance color and clarity based on your budget.
Retailer pricing strategies, overhead costs, and margin targets all contribute. The exact certified diamond can differ by $14,427 across sellers, which is why direct certified-diamond comparison is essential.
We match diamonds across retailers by their certification lab and certificate number. This means the prices you see are for the exact same physical diamond, not just stones with similar specs. It is a true apples-to-apples comparison.
Diamond prices fluctuate based on supply and demand. Our data refreshes regularly so you can track trends over time. Use the price range on this page as a benchmark and compare it to historical averages when available.
Diamond Terminology
- Carat
- A unit of weight for diamonds equal to 200 milligrams. Larger carat weights are exponentially rarer, which is why prices increase non-linearly with size.
- Cut
- Refers to how well a diamond's facets interact with light. Cut quality ranges from Ideal to Poor and is the single biggest factor affecting a diamond's brilliance.
- Color
- Grades a diamond's lack of color on a scale from D (colorless) to Z (light yellow). Grades D-F are considered colorless; G-J are near-colorless and offer good value.
- Clarity
- Measures the presence of internal inclusions or surface blemishes. Grades range from Flawless (FL) to Included (I3). Most inclusions in VS2 and above are invisible to the naked eye.
Related Price Categories
Explore adjacent carat ranges and shapes to compare market shifts.
1.7 Carat Princess Lab Grown Diamond Prices
1.9 Carat Princess Lab Grown Diamond Prices
1.6 Carat Princess Lab Grown Diamond Prices
2 Carat Princess Lab Grown Diamond Prices
1.5 Carat Princess Lab Grown Diamond Prices
2.1 Carat Princess Lab Grown Diamond Prices
1.4 Carat Princess Lab Grown Diamond Prices
1.8 Carat Round Lab Grown Diamond Prices
1.8 Carat Oval Lab Grown Diamond Prices
1.8 Carat Radiant Lab Grown Diamond Prices
1.8 Carat Emerald Lab Grown Diamond Prices
1.8 Carat Cushion Lab Grown Diamond Prices
Tracking Lab Grown inventory for 1.8 carat Princess diamonds.