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Cushion|Lab Grown|IGI

8.51ct H VS1 Cushion Lab Grown Diamond

EX • H/VS1 • IGI LG647454568

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG647454568

Diamond specifications and retailer prices

From $2,386 USD
As of October 31, 2026
Save $12,274 USD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $14,660 USD at Do Amore Diamonds · As of November 1, 2026
View at Do Amore Diamonds

About this 8.51ct lab-grown cushion diamond

This 8.51ct lab-grown cushion sits in the over five carat band, graded H colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG647454568 or 647454568. Listed at 14 retailers as of October 31, 2026, with prices from $2,386 to $14,660, a $12,274 spread on the same certified stone. Do Amore Diamonds lists it at $14,660. 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

8.51
Carat
H
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG647454568
Dimensions14.75 × 10.31 × 6.80 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
14.75 mm10.31 mm8.51 ctH / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG647454568
Side View
Table 64.0%Crown 37.7°Girdle: STK-VTKPavilion 36.8°Culet: NoneDepth 66.0%

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: $14,660 USD|Low: $2,386 USD|High: $15,620 USD|Avg: $5,760 USD|-6.1%
Do Amore Diamonds
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
November 1, 2026
Retailer 13$2,386 USD
Retailer 16$2,471 USD
Retailer 12$2,635 USD
Retailer 3$2,883 USD
Retailer 5$2,918 USD
Retailer 9$3,246 USD
Retailer 8$3,315 USD
Retailer 15$3,470 USD
Retailer 10$4,575 USD
Retailer 2$5,054 USD
Retailer 4$5,182 USD
Retailer 14$6,927 USD
Retailer 11$7,342 USD
Retailer 6$9,525 USD
Retailer 7$12,500 USD
Do Amore Diamonds$14,660 USD

30 data points across 16 retailers

14 retailers$2,386 USD to $14,660 USD

A
Cheapest Retailer
-
$2,386 USD
Final sale: no returns
Retailer 2
-
$2,471 USD
View
Price last confirmed 21 days ago
A
Retailer 3
-
$2,635 USD
View
A
Retailer 4
-
$2,883 USD
View
A
Retailer 5
-
$2,918 USD
View
A
Retailer 6
-
$3,246 USD
£2,556 GBP
View
A
Retailer 7
-
$3,470 USD
View
B+
Retailer 8
-
$4,575 USD
ZAR 73,903 ZAR
View
B+
Retailer 9
-
$5,054 USD
A$7,775 AUD
View
B+
Retailer 10
-
$5,182 USD
£4,080 GBP
View
B
Retailer 11
-
$6,927 USD
View
B
Retailer 12
-
$7,342 USD
£5,781 GBP
View
B
Retailer 13
-
$9,525 USD
View
Most Expensive
B
Do Amore Diamonds
27-522F630BB · Nov 1
$14,660 USD
View
13 more retailers have this diamond
Prices start from $2,386 USDSave up to $12,274 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
8.51ct Cushion
$2,386 USD