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Cushion|Lab Grown|IGI

1.81ct D SI2 Cushion Lab Grown Diamond

ID • D/SI2 • IGI LG719519152

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG719519152

Diamond specifications and retailer prices

From $237 USD
As of November 1, 2026
Save $1,238 USD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,475 USD at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 top-tier cut grade and certified by IGI LG719519152 or 719519152. Listed at 12 retailers as of October 31, 2026, with prices from $237 to $1,475, a $1,238 spread on the same certified stone. Diamond Quarter lists it at $1,475. 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

1.81
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle28.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG719519152
Dimensions6.71 × 6.54 × 4.40 mm
L/W Ratio1.03
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.71 mm6.54 mm1.81 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG719519152
Side View
Table 66.0%Crown 36.7°Girdle: MED-VTKPavilion 28.3°Culet: NoneDepth 67.3%

Caratlytics Score

How it works →
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 1
Current: $1,113 USD|Low: $174 USD|High: $2,020 USD|Avg: $664 USD|+1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$237 USD
Retailer 11$238 USD
Retailer 3$322 USD
Retailer 5$399 USD
Retailer 4$430 USD
Retailer 2$582 USD
Retailer 10$583 USD
Retailer 9$610 USD
Retailer 1$1,113 USD
Retailer 8$1,160 USD
Retailer 6$1,410 USD

42 data points across 11 retailers

12 retailers$237 USD to $1,475 USD

A
Cheapest Retailer
-
$237 USD
Final sale: no returns
Retailer 2
-
$238 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$322 USD
View
A
Retailer 4
-
$399 USD
€380 EUR
View
A
Retailer 5
-
$430 USD
£339 GBP
View
A
Retailer 6
-
$582 USD
View
A
Retailer 7
-
$583 USD
View
B+
Retailer 8
-
$610 USD
View
B+
Retailer 9
-
$1,113 USD
£876 GBP
View
Retailer 10
-
$1,160 USD
View
Price last confirmed 11 days ago
B
Retailer 11
-
$1,410 USD
View
Most Expensive
B
Diamond Quarter
1.81SI2DLG595B42N · Oct 31
$1,475 USD
£1,161 GBP
View
11 more retailers have this diamond
Prices start from $237 USDSave up to $1,238 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
1.81ct Cushion
$237 USD