Cushion|Lab Grown|IGI

3.99ct G VVS2 Cushion Lab Grown Diamond

EX • G/VVS2 • IGI LG812630957

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG812630957

Diamond specifications and retailer prices

From $504 USD
As of October 31, 2026
Save $444 USD (47%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $3,015 USD at Rare Carat · As of October 19, 2026
View at Rare Carat

About this 3.99ct lab-grown cushion diamond

This 3.99ct 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 LG812630957 or 812630957. Listed at 3 retailers as of October 31, 2026, with a 88% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.99
Carat
G
Color
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle36.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG812630957
Dimensions10.63 × 8.32 × 5.66 mm
L/W Ratio1.28
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.63 mm8.32 mm3.99 ctG / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG812630957
Side View
Table 58.0%Crown 36.4°Girdle: MED-STKPavilion 36.2°Culet: NoneDepth 68.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 31
Current: $3,015 USD|Low: $504 USD|High: $3,050 USD|Avg: $1,472 USD|-1.1%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 3$504 USD
Retailer 4$715 USD
Retailer 2$948 USD
Retailer 5$1,625 USD
Retailer 6$1,874 USD
Rare Carat$3,015 USD

38 data points across 6 retailers

3 retailers$504 USD to $948 USD

A
Cheapest Retailer
-
$504 USD
Final sale: no returns
A
Retailer 2
-
$948 USD
£746 GBP
View
Most Expensive
Rare Carat
812630957 · Oct 19
$3,015 USD
View
Price last confirmed 13 days ago
2 more retailers have this diamond
Prices start from $504 USDSave up to $444 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
3.99ct Cushion
$504 USD