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Cushion|Lab Grown|IGI

0.51ct D IF Cushion Lab Grown Diamond

VG • D/IF • IGI LG778616981

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG778616981

Diamond specifications and retailer prices

From $351 CAD
$251 USD
As of October 30, 2026
Save $2,569 CAD (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $2,920 CAD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore 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 D colour (colourless) and IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG778616981 or 778616981. Listed at 18 retailers as of October 30, 2026, with prices from $351 to $2,920, a $2,569 spread on the same certified stone. Do Amore Diamonds lists it at $2,920. 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
D
Color
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778616981
Dimensions4.51 × 4.46 × 3.10 mm
L/W Ratio1.01
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
4.51 mm4.46 mm0.51 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778616981
Side View
Table 62.0%Crown 37.4°Girdle: MED-THKPavilion 39.8°Culet: NoneDepth 69.5%

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 30
Current: $2,920 CAD|Low: $335 CAD|High: $2,920 CAD|Avg: $1,119 CAD
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 31, 2026
Retailer 15$351 CAD
Retailer 8$394 CAD
Retailer 5$419 CAD
Retailer 7$520 CAD
Retailer 9$601 CAD
Retailer 12$777 CAD
Retailer 3$792 CAD
Retailer 2$816 CAD
Retailer 14$909 CAD
Retailer 11$1,092 CAD
Retailer 4$1,228 CAD
Retailer 16$1,620 CAD
Retailer 6$1,682 CAD
Retailer 10$1,731 CAD
Retailer 13$1,777 CAD
Do Amore Diamonds$2,920 CAD

34 data points across 16 retailers

18 retailers$351 CAD to $2,920 CAD

Retailer 1
-
$342 CAD
$245 USD
Price last confirmed 27 days ago
A
Retailer 2
-
$351 CAD
$251 USD
View
Final sale: no returns
A
Retailer 3
-
$394 CAD
$282 USD
View
Retailer 4
-
$419 CAD
$300 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$520 CAD
$372 USD
View
Retailer 6
-
$545 CAD
$390 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
$601 CAD
$430 USD
View
B+
Retailer 8
-
$777 CAD
ZAR 8,990 ZAR
View
B+
Retailer 9
-
$792 CAD
$567 USD
View
B+
Retailer 10
-
$816 CAD
€556 EUR
View
B+
Retailer 11
-
$909 CAD
A$1,001 AUD
View
B+
Retailer 12
-
$1,092 CAD
A$1,203 AUD
View
B
Retailer 13
-
$1,228 CAD
View
B
Retailer 14
-
$1,620 CAD
$1,160 USD
View
Retailer 15
-
$1,682 CAD
£948 GBP
View
Price last confirmed 12 days ago
B
Retailer 16
-
$1,731 CAD
£976 GBP
View
B
Retailer 17
-
$1,777 CAD
$1,272 USD
View
Most Expensive
B
Do Amore Diamonds
32-LG778616981 · Oct 31
$2,920 CAD
$2,090 USD
View
17 more retailers have this diamond
Prices start from $351 CADSave up to $2,569 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
$351 CAD