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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

EX • E/SI1 • IGI LG537240878

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG537240878

Diamond specifications and retailer prices

From €185 EUR
As of November 6, 2026
Save €843 EUR (82%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: €1,028 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG537240878 or 537240878. Listed at 16 retailers as of November 6, 2026, with prices from €185 to €1,028, a €843 spread on the same certified stone. Reve Diamonds lists it at €1,028. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.4°
Pavilion angle31.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG537240878
Dimensions7.72 × 5.99 × 3.75 mm
L/W Ratio1.29
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
7.72 mm5.99 mm1.51 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG537240878
Side View
Table 60.5%Crown 37.4°Girdle: MED-STKPavilion 31.3°Culet: NoneDepth 62.6%

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: Nov 6
Current: €474 EUR|Low: €185 EUR|High: €975 EUR|Avg: €465 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
Retailer 13
November 7, 2026
Retailer 4€185 EUR
Retailer 2€206 EUR
Retailer 13€278 EUR
Retailer 9€339 EUR
Retailer 8€368 EUR
Retailer 5€410 EUR
Retailer 11€452 EUR
Retailer 1€474 EUR
Retailer 10€491 EUR
Retailer 3€505 EUR
Retailer 6€761 EUR
Retailer 12€815 EUR
Retailer 7€958 EUR

44 data points across 13 retailers

16 retailers€185 EUR to €1,028 EUR

A
Cheapest Retailer
-
€185 EUR
Final sale: no returns
A
Retailer 2
-
€206 EUR
View
B+
Retailer 3
-
€278 EUR
View
A
Retailer 4
-
€339 EUR
View
A
Retailer 5
-
€368 EUR
View
A
Retailer 6
-
€402 EUR
View
A
Retailer 7
-
€410 EUR
View
A
Retailer 8
-
€452 EUR
View
A
Retailer 9
-
€474 EUR
View
A
Retailer 10
-
€491 EUR
View
B+
Retailer 11
-
€505 EUR
View
B
Retailer 12
-
€711 EUR
View
B+
Retailer 13
-
€761 EUR
View
B
Retailer 14
-
€815 EUR
View
B
Retailer 15
-
€958 EUR
View
Most Expensive
B
Reve Diamonds
DD937C927 · Nov 6
€1,028 EUR
$1,148 USD
View
15 more retailers have this diamond
Prices start from €185 EURSave up to €843 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
€185 EUR