1.9 Carat Marquise Lab Grown Diamond Prices Comparison
As of February 2026, 1.9 carat marquise lab grown diamonds usually range from $496 to $6,011, with an average price of $768.In the last month, prices for these diamonds are down 0.5%.Compare 1,165 verified listings across 7 retailers tracked by CaratRadar.
1.9 Carat Marquise Lab Grown Diamond Market Overview
CaratRadar currently tracks 1,165 verified 1.9-carat marquise lab grown diamonds listed across 7 online retailers. Prices in this segment range from $496 to $6,011, with an average asking price of $768 and a median of $689.
The price spread of $5,515 (91.7% 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.
1,165 diamonds tracked in this segment
Price range: $496 to $6,011
Average price: $768
Median price: $689
Available across 7 retailers
Savings potential: up to 91.7%
Price Range Overview
As of Feb 28, 2026Real market range for this carat, shape, and diamond type.
1,165
$496
$768
$689
$6,011
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 46.3%1.86ct | Marquise | E | VS1 | Ideal
From $827
Compare at $1,540
IGISave 40.9%1.86ct | Marquise | F | VS1 | Excellent
From $801
Compare at $1,355
IGISave 75%1.86ct | Marquise | E | VVS2 | Very Good
From $895
Compare at $3,580
IGISave 56.3%1.86ct | Marquise | E | VS2 | Ideal
From $625
Compare at $1,430
IGISave 80.1%1.86ct | Marquise | E | VVS2 | Ideal
From $713
Compare at $3,580
IGISave 70.1%1.86ct | Marquise | G | VVS2 | Excellent
From $616
Compare at $2,060
IGISave 80.1%1.86ct | Marquise | E | VVS2 | Excellent
From $713
Compare at $3,580
IGISave 54.6%1.86ct | Marquise | E | VS1 | Ideal
From $698
Compare at $1,540
IGISave 43.2%1.86ct | Marquise | F | VS1 | Ideal
From $801
Compare at $1,410
IGISave 48.6%1.86ct | Marquise | E | VVS2 | Excellent
From $886
Compare at $1,725
IGISave 60.1%1.86ct | Marquise | D | VS2 | Ideal
From $637
Compare at $1,595
IGISave 45.8%1.86ct | Marquise | E | VS1 | Ideal
From $835
Compare at $1,540
IGISave 55.4%1.86ct | Marquise | E | VS1 | Ideal
From $686
Compare at $1,540
IGISave 59.3%1.86ct | Marquise | E | VVS2 | Very Good
From $901
Compare at $2,211
IGISave 62.2%1.86ct | Marquise | E | VVS1 | Very Good
From $1,002
Compare at $2,648
IGISave 55.7%1.86ct | Marquise | D | IF | Excellent
From $2,806
Compare at $6,333
IGISave 62.2%1.86ct | Marquise | E | VS1 | Excellent
From $581
Compare at $1,540
IGISave 66%1.86ct | Marquise | F | VVS2 | Excellent
From $563
Compare at $1,655
IGISave 66.3%1.86ct | Marquise | F | VVS2 | Excellent
From $563
Compare at $1,668
IGISave 60.8%1.86ct | Marquise | E | VS1 | Excellent
From $581
Compare at $1,485
IGISave 67.1%1.86ct | Marquise | E | VVS2 | Ideal
From $604
Compare at $1,833
IGISave 56%1.86ct | Marquise | E | VS1 | Ideal
From $677
Compare at $1,540
IGISave 81.6%1.86ct | Marquise | E | VS1 | Excellent
From $578
Compare at $3,140
IGISave 66%1.86ct | Marquise | F | VVS2 | Ideal
From $563
Compare at $1,655
IGISave 56.7%1.86ct | Marquise | F | VS1 | Excellent
From $641
Compare at $1,479
IGISave 71.1%1.86ct | Marquise | F | VVS2 | Ideal
From $662
Compare at $2,290
IGISave 60%1.86ct | Marquise | E | VVS2 | Ideal
From $720
Compare at $1,800
IGISave 78.1%1.86ct | Marquise | E | VS1 | Ideal
From $684
Compare at $3,130
IGISave 71.5%1.86ct | Marquise | E | IF | Ideal
From $1,676
Compare at $5,870
IGISave 56.4%1.86ct | Marquise | E | VS1 | Ideal
From $648
Compare at $1,485
IGISave 75.7%1.86ct | Marquise | E | VS1 | Ideal
From $623
Compare at $2,560
IGISave 54.4%1.86ct | Marquise | E | VS1 | Excellent
From $677
Compare at $1,485
IGISave 65.8%1.86ct | Marquise | F | VVS2 | Excellent
From $566
Compare at $1,655
IGISave 78.4%1.86ct | Marquise | D | VS1 | Ideal
From $720
Compare at $3,340
IGISave 54.9%1.86ct | Marquise | E | VS1 | Excellent
From $670
Compare at $1,485
IGISave 56.5%1.86ct | Marquise | E | VS1 | Ideal
From $670
Compare at $1,540
IGISave 55.4%1.86ct | Marquise | E | VS1 | Ideal
From $686
Compare at $1,540
IGISave 43.8%1.86ct | Marquise | E | VS1 | Excellent
From $835
Compare at $1,485
IGISave 48.6%1.86ct | Marquise | E | VVS2 | Excellent
From $886
Compare at $1,725
IGISave 73.8%1.86ct | Marquise | F | VS1 | Ideal
From $634
Compare at $2,420
IGISave 60.7%1.86ct | Marquise | E | VVS2 | Ideal
From $720
Compare at $1,833
IGISave 61.2%1.86ct | Marquise | G | VS2 | Very Good
From $655
Compare at $1,690
IGISave 56.3%1.86ct | Marquise | E | VS2 | Ideal
From $625
Compare at $1,430
IGISave 71.7%1.86ct | Marquise | F | VVS2 | Ideal
From $670
Compare at $2,370
IGISave 73.7%1.86ct | Marquise | D | VVS2 | Ideal
From $1,053
Compare at $4,010
IGISave 68.1%1.86ct | Marquise | D | VS1 | Very Good
From $859
Compare at $2,690
IGISave 80.7%1.86ct | Marquise | E | VS1 | Ideal
From $634
Compare at $3,290
IGISave 81.5%1.86ct | Marquise | D | VVS2 | Ideal
From $629
Compare at $3,390
IGISave 78.3%1.86ct | Marquise | G | VVS2 | Excellent
From $518
Compare at $2,380
IGISave 58.7%1.86ct | Marquise | E | VVS2 | Excellent
From $713
Compare at $1,725
Entry pricing in this category starts around $496.
What to Know When Shopping for 1.9 Carat Marquise Lab Grown Diamonds
- Always compare identical certified diamonds across retailers. Identical certificate numbers can have price differences of $5,515 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 $689 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.
- Marquise diamonds maximize carat weight face-up and appear larger than their actual weight. Check symmetry carefully.
Frequently Asked Questions
We currently track 1,165 comparable stones in this segment. Prices start around $496 and go up to $6,011.
Based on the latest market data, the average asking price is about $768 with a median around $689.
The observed spread is roughly $5,515 across tracked listings, which is about 91.7% 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 $689, 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 7 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 $5,515 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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