Cushion|Lab Grown|IGI

10.31ct G VS1 Cushion Lab Grown Diamond

ID • G/VS1 • IGI LG614333674

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG614333674

Diamond specifications and retailer prices

From $3,471 NZD
$1,956 USD
As of November 1, 2026
Save $18,584 NZD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $22,055 NZD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 10.31ct lab-grown cushion diamond

This 10.31ct lab-grown cushion sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG614333674 or 614333674. Listed at 18 retailers as of October 31, 2026, with prices from $3,471 to $22,055, a $18,584 spread on the same certified stone. Brilliant Earth lists it at $22,055. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

10.31
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.2°
Pavilion angle31.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG614333674
Dimensions12.00 × 11.81 × 7.59 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.00 mm11.81 mm10.31 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG614333674
Side View
Table 65.0%Crown 37.2°Girdle: THK-VTKPavilion 31.2°Culet: NoneDepth 64.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $22,055 NZD|Low: $3,226 NZD|High: $29,063 NZD|Avg: $7,187 NZD|-24.1%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 12$3,226 NZD
Retailer 4$3,471 NZD
Retailer 5$3,597 NZD
Retailer 14$3,895 NZD
Retailer 6$4,579 NZD
Retailer 2$5,100 NZD
Retailer 11$5,119 NZD
Retailer 9$5,386 NZD
Retailer 13$5,488 NZD
Retailer 10$5,568 NZD
Retailer 8$6,664 NZD
Retailer 7$7,436 NZD
Retailer 3$9,691 NZD
Retailer 15$10,373 NZD
Brilliant Earth$22,055 NZD

44 data points across 15 retailers

18 retailers$3,471 NZD to $22,055 NZD

Retailer 1
-
$3,226 NZD
£1,432 GBP
Price last confirmed 16 days ago
A
Retailer 2
-
$3,471 NZD
$1,956 USD
View
Final sale: no returns
Retailer 3
-
$3,597 NZD
$2,027 USD
View
Price last confirmed 20 days ago
A
Retailer 4
-
$3,895 NZD
$2,195 USD
View
A
Retailer 5
-
$4,579 NZD
$2,581 USD
View
A
Retailer 6
-
$5,100 NZD
£2,263 GBP
View
B+
Retailer 7
-
$5,119 NZD
$2,885 USD
View
A
Retailer 8
-
$5,386 NZD
€2,891 EUR
View
A
Retailer 9
-
$5,488 NZD
$3,093 USD
View
A
Retailer 10
-
$5,568 NZD
ZAR 50,695 ZAR
View
A
Retailer 11
-
$6,664 NZD
A$5,778 AUD
View
A
Retailer 12
-
$7,436 NZD
£3,300 GBP
View
B+
Retailer 13
-
$8,854 NZD
$4,990 USD
View
B+
Retailer 14
-
$9,691 NZD
$5,462 USD
View
B+
Retailer 15
-
$10,373 NZD
$5,846 USD
View
B+
Retailer 16
-
$11,155 NZD
$6,287 USD
View
B
Retailer 17
-
$12,613 NZD
$7,109 USD
View
Most Expensive
B
Brilliant Earth
9053892A · Oct 31
$22,055 NZD
$12,430 USD
View
17 more retailers have this diamond
Prices start from $3,471 NZDSave up to $18,584 NZD

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
10.31ct Cushion
$3,471 NZD