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Cushion|Lab Grown|IGI

1.51ct D SI1 Cushion Lab Grown Diamond

EX • D/SI1 • IGI LG547265064

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG547265064

Diamond specifications and retailer prices

From €188 EUR
As of November 6, 2026
Save €846 EUR (82%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €1,034 EUR at Reve Diamonds · As of November 6, 2026
View at Reve Diamonds

About this 1.51ct lab-grown cushion diamond

This 1.51ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG547265064 or 547265064. Listed at 15 retailers as of November 6, 2026, with prices from €188 to €1,034, a €846 spread on the same certified stone. Reve Diamonds lists it at €1,034. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39°
Pavilion angle31.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG547265064
Dimensions7.36 × 5.90 × 3.94 mm
L/W Ratio1.25
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
7.36 mm5.90 mm1.51 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG547265064
Side View
Table 60.0%Crown 39°Girdle: STK-THKPavilion 31.1°Culet: NoneDepth 66.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €478 EUR|Low: €188 EUR|High: €1,155 EUR|Avg: €498 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 7, 2026
Retailer 3€188 EUR
Retailer 12€209 EUR
Retailer 11€282 EUR
Retailer 8€342 EUR
Retailer 7€373 EUR
Retailer 4€416 EUR
Retailer 1€478 EUR
Retailer 9€498 EUR
Retailer 2€507 EUR
Retailer 5€771 EUR
Retailer 6€969 EUR
Retailer 10€1,021 EUR

43 data points across 12 retailers

15 retailers€188 EUR to €1,034 EUR

A
Cheapest Retailer
-
€188 EUR
Final sale: no returns
A
Retailer 2
-
€209 EUR
View
B+
Retailer 3
-
€282 EUR
View
A
Retailer 4
-
€342 EUR
View
A
Retailer 5
-
€373 EUR
View
A
Retailer 6
-
€416 EUR
View
A
Retailer 7
-
€437 EUR
View
A
Retailer 8
-
€478 EUR
View
A
Retailer 9
-
€498 EUR
View
B+
Retailer 10
-
€507 EUR
View
B
Retailer 11
-
€717 EUR
View
B+
Retailer 12
-
€771 EUR
View
B
Retailer 13
-
€969 EUR
View
B
Retailer 14
-
€1,021 EUR
View
Most Expensive
B
Reve Diamonds
DDE676A54 · Nov 6
€1,034 EUR
$1,154 USD
View
14 more retailers have this diamond
Prices start from €188 EURSave up to €846 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
1.51ct Cushion
€188 EUR