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Cushion|Lab Grown|IGI

3.18ct E VVS1 Cushion Lab Grown Diamond

EX • E/VVS1 • IGI LG790626874

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG790626874

Diamond specifications and retailer prices

From $935 USD
As of October 25, 2026
Save $7,205 USD (89%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $8,140 USD at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 3.18ct lab-grown cushion diamond

This 3.18ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG790626874 or 790626874. Listed at 19 retailers as of October 24, 2026, with prices from $935 to $8,140, a $7,205 spread on the same certified stone. Brilliant Earth lists it at $8,140. 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

3.18
Carat
E
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle28.2°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790626874
Dimensions10.22 × 8.15 × 5.16 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
10.22 mm8.15 mm3.18 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790626874
Side View
Table 62.0%Crown 28.2°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 63.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $8,140 USD|Low: $729 USD|High: $8,390 USD|Avg: $2,438 USD|-3.0%
Brilliant Earth
Retailer 2
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Retailer 19
October 25, 2026
Retailer 7$729 USD
Retailer 16$881 USD
Retailer 18$935 USD
Retailer 4$1,142 USD
Retailer 13$1,195 USD
Retailer 2$1,227 USD
Retailer 8$1,235 USD
Retailer 17$1,717 USD
Retailer 15$1,718 USD
Retailer 14$1,740 USD
Retailer 5$1,952 USD
Retailer 3$2,347 USD
Retailer 9$2,547 USD
Retailer 19$2,579 USD
Retailer 6$2,609 USD
Retailer 12$3,190 USD
Retailer 10$3,546 USD
Retailer 11$4,245 USD
Brilliant Earth$8,140 USD

34 data points across 19 retailers

19 retailers$935 USD to $8,140 USD

Retailer 1
-
$881 USD
£694 GBP
Price last confirmed 11 days ago
A
Retailer 2
-
$935 USD
View
A
Retailer 3
-
$1,142 USD
View
A
Retailer 4
-
$1,195 USD
£941 GBP
View
A
Retailer 5
-
$1,227 USD
€1,169 EUR
View
Retailer 6
-
$1,235 USD
View
Price last confirmed 9 days ago
Retailer 7
-
$1,717 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$1,718 USD
A$2,643 AUD
View
Price last confirmed 9 days ago
A
Retailer 9
-
$1,740 USD
ZAR 28,103 ZAR
View
A
Retailer 10
-
$1,952 USD
View
B+
Retailer 11
-
$2,347 USD
£1,848 GBP
View
B+
Retailer 12
-
$2,441 USD
View
B+
Retailer 13
-
$2,547 USD
SGD 3,442 SGD
View
B+
Retailer 14
-
$2,579 USD
View
B+
Retailer 15
-
$2,609 USD
View
B+
Retailer 16
-
$3,190 USD
£2,512 GBP
View
Retailer 17
-
$3,546 USD
A$5,456 AUD
View
Price last confirmed 22 days ago
Retailer 18
-
$4,245 USD
View
Price last confirmed 25 days ago
Most Expensive
B
Brilliant Earth
18673139A · Oct 24
$8,140 USD
View
18 more retailers have this diamond
Prices start from $935 USDSave up to $7,205 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
3.18ct Cushion
$935 USD