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Cushion|Lab Grown|IGI

1.51ct E SI1 Cushion Lab Grown Diamond

VG • E/SI1 • IGI LG541253650

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG541253650

Diamond specifications and retailer prices

From €227 EUR
As of November 6, 2026
Save €918 EUR (80%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: €1,144 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 very-good cut grade and certified by IGI LG541253650 or 541253650. Listed at 13 retailers as of November 6, 2026, with prices from €227 to €1,144, a €918 spread on the same certified stone. Reve Diamonds lists it at €1,144. 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

1.51
Carat
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG541253650
Dimensions8.09 × 5.78 × 3.97 mm
L/W Ratio1.40
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
8.09 mm5.78 mm1.51 ctE / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG541253650
Side View
Table 61.0%Crown 32.8°Girdle: MED-THKPavilion 37.9°Culet: NoneDepth 68.7%

Caratlytics Score

How it works →
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: €534 EUR|Low: €226 EUR|High: €1,144 EUR|Avg: €516 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
Reve Diamonds
November 7, 2026
Retailer 3€227 EUR
Retailer 4€252 EUR
Retailer 6€322 EUR
Retailer 11€339 EUR
Retailer 8€402 EUR
Retailer 2€415 EUR
Retailer 7€464 EUR
Retailer 10€477 EUR
Retailer 1€534 EUR
Retailer 12€854 EUR
Retailer 5€907 EUR
Retailer 9€1,004 EUR
Reve Diamonds€1,144 EUR

40 data points across 13 retailers

13 retailers€227 EUR to €1,144 EUR

A
Cheapest Retailer
-
€227 EUR
Final sale: no returns
A
Retailer 2
-
€252 EUR
View
A
Retailer 3
-
€322 EUR
View
B+
Retailer 4
-
€339 EUR
View
A
Retailer 5
-
€402 EUR
View
B+
Retailer 6
-
€415 EUR
View
B+
Retailer 7
-
€464 EUR
View
B+
Retailer 8
-
€477 EUR
View
B+
Retailer 9
-
€534 EUR
View
B
Retailer 10
-
€854 EUR
View
B
Retailer 11
-
€907 EUR
View
B
Retailer 12
-
€1,004 EUR
View
Most Expensive
B
Reve Diamonds
1DAE62A6A · Nov 6
€1,144 EUR
$1,278 USD
View
12 more retailers have this diamond
Prices start from €227 EURSave up to €918 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
€227 EUR