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Cushion|Lab Grown|IGI

6.37ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG645455952

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG645455952

Diamond specifications and retailer prices

From $2,417 USD
As of October 25, 2026
Save $10,043 USD (81%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: $15,510 USD at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 6.37ct lab-grown cushion diamond

This 6.37ct lab-grown cushion sits in the over five carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG645455952 or 645455952. Listed at 22 retailers as of October 25, 2026, with a 416% 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

6.37
Carat
D
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.3°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG645455952
Dimensions10.43 × 10.38 × 6.56 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
10.43 mm10.38 mm6.37 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG645455952
Side View
Table 61.0%Crown 38.3°Girdle: STK-THKPavilion 31.5°Culet: NoneDepth 63.2%

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: $3,213 USD|Low: $2,027 USD|High: $7,951 USD|Avg: $4,109 USD|+0.9%
Retailer 1
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
October 24, 2026
Retailer 6$2,027 USD
Retailer 15$2,101 USD
Retailer 14$2,270 USD
Retailer 5$2,417 USD
Retailer 1$3,213 USD
Retailer 3$3,315 USD
Retailer 13$3,472 USD
Retailer 8$3,486 USD
Retailer 9$4,304 USD
Retailer 7$4,404 USD
Retailer 10$4,438 USD
Retailer 11$6,195 USD
Retailer 2$6,278 USD
Retailer 12$6,657 USD
Retailer 4$7,951 USD

38 data points across 15 retailers

22 retailers$2,417 USD to $12,460 USD

Retailer 1
-
$2,101 USD
Price last confirmed 17 days ago
Retailer 2
-
$2,270 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$2,417 USD
View
A
Retailer 4
-
$2,752 USD
HK$21,500 HKD
View
A
Retailer 5
-
$3,014 USD
View
A
Retailer 6
-
$3,213 USD
£2,530 GBP
View
Retailer 7
-
$3,315 USD
View
Price last confirmed 7 days ago
Retailer 8
-
$3,472 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
$3,486 USD
€3,320 EUR
View
Retailer 10
-
$4,304 USD
A$6,621 AUD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
$4,404 USD
£3,468 GBP
View
Retailer 12
-
$4,438 USD
ZAR 71,690 ZAR
View
Price last confirmed 10 days ago
Retailer 13
-
$5,969 USD
View
Price last confirmed 7 days ago
Retailer 14
-
$6,195 USD
View
Price last confirmed 8 days ago
Retailer 15
-
$6,278 USD
A$9,658 AUD
View
Price last confirmed 21 days ago
Retailer 16
-
$6,657 USD
£5,242 GBP
View
Price last confirmed 9 days ago
Retailer 17
-
$7,415 USD
View
B
Retailer 18
-
$7,951 USD
SGD 10,744 SGD
View
Retailer 19
-
$8,115 USD
View
Price last confirmed 8 days ago
B
Retailer 20
-
$12,460 USD
View
Retailer 21
-
$14,200 USD
View
Price last confirmed 7 days ago
Most Expensive
Brilliant Earth
14102592Y · Oct 1
$15,510 USD
View
Price last confirmed 28 days ago
21 more retailers have this diamond
Prices start from $2,417 USDSave up to $10,043 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
6.37ct Cushion
$2,417 USD