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Cushion|Lab Grown|IGI

1.81ct D SI2 Cushion Lab Grown Diamond

VG • D/SI2 • IGI LG515211459

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG515211459

Diamond specifications and retailer prices

From $695 USD
As of November 2, 2026
Save $1,997 USD (74%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,692 USD at MOH London · As of November 1, 2026
View at MOH London

About this 1.81ct lab-grown cushion diamond

This 1.81ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI LG515211459 or 515211459. Listed at 6 retailers as of November 1, 2026, with prices from $695 to $2,692, a $1,997 spread on the same certified stone. MOH London lists it at $2,692. 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

1.81
Carat
D
Color
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.4°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG515211459
Dimensions7.83 × 6.30 × 4.41 mm
L/W Ratio1.24
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
7.83 mm6.30 mm1.81 ctD / SI2
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG515211459
Side View
Table 64.0%Crown 40.4°Girdle: STK-VTKPavilion 33°Culet: NoneDepth 70.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,692 USD|Low: $695 USD|High: $2,724 USD|Avg: $1,240 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 1, 2026
Retailer 6$695 USD
Retailer 3$939 USD
Retailer 5$999 USD
Retailer 2$1,000 USD
Retailer 4$1,160 USD
MOH London$2,692 USD

41 data points across 6 retailers

6 retailers$695 USD to $2,692 USD

B+
Cheapest Retailer
-
$695 USD
B+
Retailer 2
-
$939 USD
€894 EUR
View
B+
Retailer 3
-
$999 USD
View
B+
Retailer 4
-
$1,000 USD
£787 GBP
View
B
Retailer 5
-
$1,160 USD
View
Most Expensive
B
MOH London
LG515211459 · Nov 1
$2,692 USD
£2,120 GBP
View
5 more retailers have this diamond
Prices start from $695 USDSave up to $1,997 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.

B+
1.81ct Cushion
$695 USD