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Cushion|Lab Grown|IGI

3.90ct G VVS2 Cushion Lab Grown Diamond

EX • G/VVS2 • IGI LG817679960

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG817679960

Diamond specifications and retailer prices

From $889 NZD
$500 USD
As of November 1, 2026
Save $5,936 NZD (87%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $6,825 NZD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 3.9ct lab-grown cushion diamond

This 3.9ct lab-grown cushion sits in the three to five carat band, graded G colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG817679960 or 817679960. Listed at 4 retailers as of November 1, 2026, with prices from $889 to $6,825, a $5,936 spread on the same certified stone. Brilliant Earth lists it at $6,825. 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

3.90
Carat
G
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG817679960
Dimensions10.90 × 8.14 × 5.44 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.90 mm8.14 mm3.90 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG817679960
Side View
Table 64.0%Crown 35.3°Girdle: MED-THKPavilion 35.4°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: $6,825 NZD|Low: $889 NZD|High: $7,056 NZD|Avg: $3,146 NZD|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 3, 2026
Retailer 3$889 NZD
Retailer 6$1,546 NZD
Retailer 2$1,694 NZD
Retailer 5$1,875 NZD
Retailer 7$2,771 NZD
Retailer 8$3,323 NZD
Retailer 4$5,243 NZD
Brilliant Earth$6,825 NZD

39 data points across 8 retailers

4 retailers$889 NZD to $6,825 NZD

A
Cheapest Retailer
-
$889 NZD
$500 USD
Final sale: no returns
A
Retailer 2
-
$1,694 NZD
£751 GBP
View
Retailer 3
-
$5,243 NZD
$2,950 USD
View
Price last confirmed 15 days ago
Most Expensive
B
Brilliant Earth
21245808A · Nov 1
$6,825 NZD
$3,840 USD
View
3 more retailers have this diamond
Prices start from $889 NZDSave up to $5,936 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
3.90ct Cushion
$889 NZD