5.9 Carat Princess Lab Grown Diamond Prices Comparison
As of February 2026, 5.9 carat princess lab grown diamonds usually range from $1,176 to $8,596, with an average price of $1,946.In the last month, prices for these diamonds are down 5%.Compare 55 verified listings across 4 retailers tracked by CaratRadar.
5.9 Carat Princess Lab Grown Diamond Market Overview
CaratRadar currently tracks 55 verified 5.9-carat princess lab grown diamonds listed across 4 online retailers. Prices in this segment range from $1,176 to $8,596, with an average asking price of $1,946 and a median of $1,495.
The price spread of $7,420 (86.3% 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.
55 diamonds tracked in this segment
Price range: $1,176 to $8,596
Average price: $1,946
Median price: $1,495
Available across 4 retailers
Savings potential: up to 86.3%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
55
$1,176
$1,946
$1,495
$8,596
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 74.2%5.85ct | Princess | E | VVS1 | Ideal
From $5,004
Compare at $19,410
IGISave 77%5.85ct | Princess | E | VVS2 | Ideal
From $1,482
Compare at $6,435
IGISave 71.2%5.85ct | Princess | E | VS1 | Excellent
From $1,448
Compare at $5,030
IGISave 46.4%5.85ct | Princess | E | VVS2 | Ideal
From $2,106
Compare at $3,929
IGISave 46.2%5.85ct | Princess | H | VS1 | Excellent
From $4,646
Compare at $8,630
IGISave 59%5.85ct | Princess | E | VVS2 | Excellent
From $1,508
Compare at $3,679
IGISave 74.9%5.86ct | Princess | E | VS2 | Excellent
From $2,896
Compare at $11,530
IGISave 77%5.86ct | Princess | E | VVS2 | Ideal
From $1,485
Compare at $6,445
IGISave 88.7%5.86ct | Princess | E | VVS2 | Ideal
From $1,636
Compare at $14,530
IGISave 76.2%5.86ct | Princess | G | VS1 | Very Good
From $1,563
Compare at $6,560
IGISave 77%5.87ct | Princess | E | VVS2 | Ideal
From $1,487
Compare at $6,455
IGISave 65.9%5.87ct | Princess | E | VVS2 | Excellent
From $1,259
Compare at $3,692
IGISave 59%5.87ct | Princess | E | VVS2 | Excellent
From $1,513
Compare at $3,692
IGISave 54.6%5.87ct | Princess | F | VS2 | Excellent
From $4,704
Compare at $10,370
IGISave 88.7%5.87ct | Princess | G | VS1 | Very Good
From $1,176
Compare at $10,375
IGISave 88.3%5.87ct | Princess | F | VVS2 | Ideal
From $1,538
Compare at $13,110
IGISave 71.2%5.87ct | Princess | E | VS1 | Ideal
From $1,453
Compare at $5,045
IGISave 77%5.87ct | Princess | E | VVS2 | Ideal
From $1,487
Compare at $6,455
IGISave 18.2%5.88ct | Princess | F | VVS2 | Ideal
From $1,226
Compare at $1,498
IGISave 77%5.88ct | Princess | E | VVS2 | Ideal
From $1,490
Compare at $6,465
IGISave 71.6%5.88ct | Princess | E | VS1 | Excellent
From $1,438
Compare at $5,055
IGISave 59%5.88ct | Princess | E | VVS2 | Excellent
From $1,516
Compare at $3,697
IGISave 65.9%5.89ct | Princess | E | VVS2 | Excellent
From $1,263
Compare at $3,704
IGISave 77%5.89ct | Princess | E | VVS2 | Ideal
From $1,492
Compare at $6,475
5.89ct | Princess | H | VS1 | Very Good
From $1,237
Compare at $1,642
IGISave 77%5.89ct | Princess | E | VVS2 | Ideal
From $1,492
Compare at $6,475
IGISave 71.2%5.89ct | Princess | E | VS1 | Excellent
From $1,458
Compare at $5,065
IGISave 77%5.89ct | Princess | E | VVS2 | Ideal
From $1,492
Compare at $6,475
IGISave 65.7%5.89ct | Princess | F | VVS2 | Excellent
From $1,227
Compare at $3,582
IGISave 76.1%5.9ct | Princess | G | VS1 | Very Good
From $1,609
Compare at $6,740
IGISave 77%5.9ct | Princess | E | VVS2 | Ideal
From $1,495
Compare at $6,490
IGISave 77%5.9ct | Princess | E | VVS2 | Ideal
From $1,495
Compare at $6,490
IGISave 53.8%5.9ct | Princess | E | VVS2 | Excellent
From $1,521
Compare at $3,293
IGISave 61.6%5.9ct | Princess | E | VVS2 | Excellent
From $1,265
Compare at $3,293
IGISave 46.8%5.9ct | Princess | G | VS2 | Excellent
From $5,112
Compare at $9,610
IGISave 77%5.9ct | Princess | E | VVS2 | Ideal
From $1,495
Compare at $6,490
IGISave 77%5.9ct | Princess | E | VVS2 | Ideal
From $1,495
Compare at $6,490
IGISave 13.2%5.9ct | Princess | F | VS1 | Ideal
From $8,596
Compare at $9,908
IGISave 82.7%5.9ct | Princess | FANCY | VS1 | Excellent
From $2,308
Compare at $13,362
IGISave 77%5.91ct | Princess | E | VVS2 | Ideal
From $1,497
Compare at $6,500
IGISave 71.2%5.91ct | Princess | E | VS1 | Ideal
From $1,463
Compare at $5,080
IGISave 63.7%5.91ct | Princess | F | VVS2 | Excellent
From $1,231
Compare at $3,390
IGISave 77%5.91ct | Princess | E | VVS2 | Ideal
From $1,497
Compare at $6,500
IGISave 77%5.92ct | Princess | E | VVS2 | Ideal
From $1,500
Compare at $6,510
IGISave 86%5.92ct | Princess | F | VS1 | Ideal
From $1,713
Compare at $12,200
IGISave 77%5.92ct | Princess | E | VVS2 | Ideal
From $1,500
Compare at $6,510
IGISave 91.3%5.92ct | Princess | E | VS1 | Ideal
From $1,274
Compare at $14,690
IGISave 77%5.93ct | Princess | E | VVS2 | Ideal
From $1,502
Compare at $6,520
IGISave 77%5.93ct | Princess | E | VVS2 | Ideal
From $1,502
Compare at $6,520
IGISave 16.9%5.93ct | Princess | E | VVS2 | Ideal
From $1,270
Compare at $1,529
Entry pricing in this category starts around $1,176.
What to Know When Shopping for 5.9 Carat Princess Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $7,420 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 $1,495 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 55 comparable stones in this segment. Prices start around $1,176 and go up to $8,596.
Based on the latest market data, the average asking price is about $1,946 with a median around $1,495.
The observed spread is roughly $7,420 across tracked listings, which is about 86.3% 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 $1,495, 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 4 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 $7,420 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.
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Tracking Lab Grown inventory for 5.9 carat Princess diamonds.