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Cushion|Lab Grown|IGI

2.50ct H SI1 Cushion Lab Grown Diamond

VG • H/SI1 • IGI LG450012436

Shape and cutting style on the report: Cushion cut

Certificate IGI LG450012436

Diamond specifications and retailer prices

From $587 USD
As of November 6, 2026
Save $2,735 USD (82%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,322 USD at MOH London · As of November 5, 2026
View at MOH London

About this 2.5ct lab-grown cushion diamond

This 2.5ct lab-grown cushion sits in the two to three carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG450012436 or 450012436. Listed at 13 retailers as of November 5, 2026, with prices from $587 to $3,322, a $2,735 spread on the same certified stone. MOH London lists it at $3,322. 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

2.50
Carat
H
Color
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
Crown angle35.3°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG450012436
Dimensions8.37 × 7.42 × 5.05 mm
L/W Ratio1.13
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD). Type IIa
Top View
8.37 mm7.42 mm2.50 ctH / SI1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryGood
FluorescenceNone
CertificateIGI LG450012436
Side View
Table 61.0%Crown 35.3°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 68.1%

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: $3,322 USD|Low: $587 USD|High: $3,376 USD|Avg: $1,536 USD|-0.3%
MOH London
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 6, 2026
Retailer 5$587 USD
Retailer 9$618 USD
Retailer 13$692 USD
Retailer 10$766 USD
Retailer 11$766 USD
Retailer 3$895 USD
Retailer 2$1,085 USD
Retailer 4$1,173 USD
Retailer 6$1,660 USD
Retailer 8$1,900 USD
Retailer 12$2,223 USD
Retailer 7$3,241 USD
MOH London$3,322 USD

36 data points across 13 retailers

13 retailers$587 USD to $3,322 USD

A
Cheapest Retailer
-
$587 USD
B+
Retailer 2
-
$618 USD
View
B+
Retailer 3
-
$692 USD
View
B+
Retailer 4
-
$766 USD
View
Retailer 5
-
$766 USD
View
Price last confirmed 21 days ago
B+
Retailer 6
-
$895 USD
View
B+
Retailer 7
-
$1,085 USD
View
B+
Retailer 8
-
$1,173 USD
View
B+
Retailer 9
-
$1,660 USD
View
B+
Retailer 10
-
$1,900 USD
View
B
Retailer 11
-
$2,223 USD
View
B
Retailer 12
-
$3,241 USD
View
Most Expensive
B
MOH London
LG450012436 · Nov 5
$3,322 USD
£2,616 GBP
View
12 more retailers have this diamond
Prices start from $587 USDSave up to $2,735 USD

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
2.50ct Cushion
$587 USD