Marquise|Lab Grown|IGI

1.21ct G VVS2 Marquise Lab Grown Diamond

ID • G/VVS2 • IGI LG766658138

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG766658138

Diamond specifications and retailer prices

From $490 USD
£385 GBP
As of October 28, 2026
2 retailers carry this diamond
Most expensive: $681 USD at Rare Carat · As of July 27, 2026
View at Rare Carat

About this 1.21ct lab-grown marquise diamond

This 1.21ct lab-grown marquise sits in the classic one-carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG766658138 or 766658138. Listed at 2 retailers as of October 28, 2026. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
G
Color
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766658138
Dimensions11.19 × 5.75 × 3.37 mm
L/W Ratio1.95
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.19 mm5.75 mm1.21 ctG / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG766658138
Side View
Table 61.0%Crown 30.5°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 58.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 28
Current: $681 USD|Low: $139 USD|High: $1,260 USD|Avg: $551 USD|-3.8%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
August 4, 2026
Retailer 6$322 USD
Retailer 4$367 USD
Retailer 10$388 USD
Retailer 3$451 USD
Retailer 2$519 USD
Retailer 7$521 USD
Retailer 8$536 USD
Rare Carat$681 USD
Retailer 9$734 USD
Retailer 5$790 USD

67 data points across 10 retailers

2 retailers

A
Cheapest Retailer
-
$490 USD
£385 GBP
Most Expensive
B
Rare Carat
17V766658138 · Jul 27
$681 USD
View
Price last confirmed 94 days ago
1 more retailer has this diamond
Prices start from $490 USD

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.21ct Marquise
$490 USD