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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 $3,333 CAD
$2,386 USD
As of October 31, 2026
Save $17,146 CAD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $20,479 CAD at Do Amore Diamonds · As of October 30, 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 30, 2026, with prices from $3,333 to $20,479, a $17,146 spread on the same certified stone. Do Amore Diamonds lists it at $20,479. 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

How it works →
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: $20,479 CAD|Low: $3,333 CAD|High: $21,820 CAD|Avg: $8,058 CAD|-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
October 30, 2026
Retailer 13$3,333 CAD
Retailer 16$3,452 CAD
Retailer 12$3,681 CAD
Retailer 3$4,027 CAD
Retailer 5$4,076 CAD
Retailer 2$4,547 CAD
Retailer 8$4,630 CAD
Retailer 15$4,847 CAD
Retailer 9$6,390 CAD
Retailer 11$7,071 CAD
Retailer 4$7,238 CAD
Retailer 14$9,676 CAD
Retailer 10$10,256 CAD
Retailer 6$13,305 CAD
Retailer 7$17,461 CAD
Do Amore Diamonds$20,479 CAD

29 data points across 16 retailers

14 retailers$3,333 CAD to $20,479 CAD

A
Cheapest Retailer
-
$3,333 CAD
$2,386 USD
Final sale: no returns
Retailer 2
-
$3,452 CAD
$2,471 USD
View
Price last confirmed 20 days ago
A
Retailer 3
-
$3,681 CAD
$2,635 USD
View
A
Retailer 4
-
$4,027 CAD
$2,883 USD
View
A
Retailer 5
-
$4,076 CAD
$2,918 USD
View
A
Retailer 6
-
$4,547 CAD
£2,563 GBP
View
A
Retailer 7
-
$4,847 CAD
$3,470 USD
View
B+
Retailer 8
-
$6,390 CAD
ZAR 73,903 ZAR
View
Retailer 9
-
$7,071 CAD
A$7,788 AUD
View
Price last confirmed 9 days ago
B+
Retailer 10
-
$7,238 CAD
£4,080 GBP
View
B
Retailer 11
-
$9,676 CAD
$6,927 USD
View
B
Retailer 12
-
$10,256 CAD
£5,781 GBP
View
B
Retailer 13
-
$13,305 CAD
$9,525 USD
View
Most Expensive
B
Do Amore Diamonds
27-522F630BB · Oct 30
$20,479 CAD
$14,660 USD
View
13 more retailers have this diamond
Prices start from $3,333 CADSave up to $17,146 CAD

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
$3,333 CAD