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Cushion|Lab Grown|IGI

3.50ct D VVS1 Cushion Lab Grown Diamond

EX • D/VVS1 • IGI LG681578781

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG681578781

Diamond specifications and retailer prices

From $1,418 USD
As of October 31, 2026
Save $8,022 USD (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $9,440 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 3.5ct lab-grown cushion diamond

This 3.5ct lab-grown cushion sits in the three to five carat band, graded D colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG681578781 or 681578781. Listed at 20 retailers as of October 30, 2026, with prices from $1,418 to $9,440, a $8,022 spread on the same certified stone. Brilliant Earth lists it at $9,440. 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

3.50
Carat
D
Color
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle34.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681578781
Dimensions8.15 × 8.15 × 5.33 mm
L/W Ratio1.00
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
8.15 mm8.15 mm3.50 ctD / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681578781
Side View
Table 60.0%Crown 35.2°Girdle: STK-THKPavilion 34.8°Culet: NoneDepth 65.4%

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 31
Current: $9,440 USD|Low: $1,418 USD|High: $10,470 USD|Avg: $3,677 USD|-9.8%
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
October 31, 2026
Retailer 2$1,418 USD
Retailer 14$1,645 USD
Retailer 7$1,720 USD
Retailer 9$1,792 USD
Retailer 13$2,071 USD
Retailer 3$2,220 USD
Retailer 16$2,378 USD
Retailer 4$2,646 USD
Retailer 18$3,325 USD
Retailer 15$3,414 USD
Retailer 10$3,551 USD
Retailer 11$3,819 USD
Retailer 5$4,600 USD
Retailer 17$4,749 USD
Retailer 20$5,112 USD
Retailer 12$5,159 USD
Retailer 8$5,193 USD
Retailer 19$5,505 USD
Retailer 6$5,640 USD
Brilliant Earth$9,440 USD

34 data points across 20 retailers

20 retailers$1,418 USD to $9,440 USD

A
Cheapest Retailer
-
$1,418 USD
Final sale: no returns
A
Retailer 2
-
$1,645 USD
View
A
Retailer 3
-
$1,720 USD
View
A
Retailer 4
-
$1,792 USD
HK$14,000 HKD
View
A
Retailer 5
-
$2,071 USD
£1,631 GBP
View
B+
Retailer 6
-
$2,220 USD
View
A
Retailer 7
-
$2,378 USD
€2,265 EUR
View
B+
Retailer 8
-
$2,646 USD
View
Retailer 9
-
$3,325 USD
A$5,116 AUD
View
Price last confirmed 8 days ago
B+
Retailer 10
-
$3,414 USD
ZAR 55,147 ZAR
View
B+
Retailer 11
-
$3,551 USD
£2,796 GBP
View
B
Retailer 12
-
$3,819 USD
View
B
Retailer 13
-
$4,600 USD
View
B+
Retailer 14
-
$4,749 USD
£3,739 GBP
View
Retailer 15
-
$5,112 USD
A$7,865 AUD
View
Price last confirmed 22 days ago
B
Retailer 16
-
$5,159 USD
View
B
Retailer 17
-
$5,193 USD
SGD 7,018 SGD
View
Retailer 18
-
$5,505 USD
View
Price last confirmed 9 days ago
B
Retailer 19
-
$5,640 USD
View
Most Expensive
B
Brilliant Earth
13772870A · Oct 30
$9,440 USD
View
19 more retailers have this diamond
Prices start from $1,418 USDSave up to $8,022 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
3.50ct Cushion
$1,418 USD