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Cushion|Lab Grown|IGI

0.51ct E IF Cushion Lab Grown Diamond

VG • E/IF • IGI LG816658270

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816658270

Diamond specifications and retailer prices

From $341 CAD
$244 USD
As of October 30, 2026
Save $1,406 CAD (80%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,747 CAD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 0.51ct lab-grown cushion diamond

This 0.51ct lab-grown cushion sits in the half to three-quarter carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG816658270 or 816658270. Listed at 14 retailers as of October 30, 2026, with prices from $341 to $1,747, a $1,406 spread on the same certified stone. Reve Diamonds lists it at $1,747. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
E
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle33.8°
Pavilion angle36.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816658270
Dimensions5.09 × 4.22 × 2.86 mm
L/W Ratio1.21
Girdle conditionFaceted
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
5.09 mm4.22 mm0.51 ctE / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG816658270
Side View
Table 62.0%Crown 33.8°Girdle: MED-THKPavilion 36.8°Culet: NoneDepth 67.8%

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 30
Current: $615 CAD|Low: $341 CAD|High: $2,095 CAD|Avg: $1,070 CAD|-24.1%
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
Reve Diamonds
October 30, 2026
Retailer 3$341 CAD
Retailer 11$384 CAD
Retailer 5$514 CAD
Retailer 4$545 CAD
Retailer 1$615 CAD
Retailer 10$754 CAD
Retailer 6$811 CAD
Retailer 13$878 CAD
Retailer 2$1,207 CAD
Retailer 12$1,579 CAD
Retailer 7$1,676 CAD
Retailer 9$1,676 CAD
Retailer 8$1,678 CAD
Reve Diamonds$1,747 CAD

24 data points across 14 retailers

14 retailers$341 CAD to $1,747 CAD

A
Cheapest Retailer
-
$341 CAD
$244 USD
Final sale: no returns
A
Retailer 2
-
$384 CAD
$275 USD
View
A
Retailer 3
-
$514 CAD
$368 USD
View
A
Retailer 4
-
$545 CAD
$390 USD
View
A
Retailer 5
-
$615 CAD
$440 USD
View
B+
Retailer 6
-
$754 CAD
ZAR 8,716 ZAR
View
B+
Retailer 7
-
$811 CAD
€553 EUR
View
B+
Retailer 8
-
$878 CAD
$628 USD
View
B
Retailer 9
-
$1,207 CAD
View
B
Retailer 10
-
$1,579 CAD
$1,130 USD
View
B
Retailer 11
-
$1,676 CAD
$1,200 USD
View
B
Retailer 12
-
$1,676 CAD
$1,200 USD
View
B
Retailer 13
-
$1,678 CAD
£946 GBP
View
Most Expensive
B
Reve Diamonds
CCEBE8890 · Oct 30
$1,747 CAD
$1,250 USD
View
13 more retailers have this diamond
Prices start from $341 CADSave up to $1,406 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
0.51ct Cushion
$341 CAD