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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 €225 EUR
$251 USD
As of October 30, 2026
Save €1,646 EUR (88%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €1,871 EUR 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 €225 to €1,871, a €1,646 spread on the same certified stone. Do Amore Diamonds lists it at €1,871. 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: €1,871 EUR|Low: €215 EUR|High: €1,871 EUR|Avg: €717 EUR
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 15€225 EUR
Retailer 8€252 EUR
Retailer 5€269 EUR
Retailer 7€333 EUR
Retailer 10€385 EUR
Retailer 12€498 EUR
Retailer 3€508 EUR
Retailer 9€523 EUR
Retailer 14€582 EUR
Retailer 11€700 EUR
Retailer 4€787 EUR
Retailer 16€1,038 EUR
Retailer 6€1,078 EUR
Retailer 2€1,104 EUR
Retailer 13€1,139 EUR
Do Amore Diamonds€1,871 EUR

35 data points across 16 retailers

18 retailers€225 EUR to €1,871 EUR

Retailer 1
-
€219 EUR
$245 USD
Price last confirmed 27 days ago
A
Retailer 2
-
€225 EUR
$251 USD
View
Final sale: no returns
A
Retailer 3
-
€252 EUR
$282 USD
View
Retailer 4
-
€269 EUR
$300 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
€333 EUR
$372 USD
View
Retailer 6
-
€349 EUR
$390 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
€385 EUR
$430 USD
View
B+
Retailer 8
-
€498 EUR
ZAR 8,990 ZAR
View
B+
Retailer 9
-
€508 EUR
$567 USD
View
B+
Retailer 10
-
€523 EUR
View
B+
Retailer 11
-
€582 EUR
A$1,001 AUD
View
B+
Retailer 12
-
€700 EUR
A$1,203 AUD
View
B
Retailer 13
-
€787 EUR
CA$1,221 CAD
View
B
Retailer 14
-
€1,038 EUR
$1,160 USD
View
Retailer 15
-
€1,078 EUR
£948 GBP
View
Price last confirmed 12 days ago
B
Retailer 16
-
€1,104 EUR
£971 GBP
View
B
Retailer 17
-
€1,139 EUR
$1,272 USD
View
Most Expensive
B
Do Amore Diamonds
32-LG778616981 · Oct 31
€1,871 EUR
$2,090 USD
View
17 more retailers have this diamond
Prices start from €225 EURSave up to €1,646 EUR

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
€225 EUR