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Cushion|Lab Grown|IGI

1.60ct D SI1 Cushion Lab Grown Diamond

ID • D/SI1 • IGI LG532240127

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG532240127

Diamond specifications and retailer prices

From $294 USD
As of October 30, 2026
Save $1,246 USD (81%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,540 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.6ct lab-grown cushion diamond

This 1.6ct lab-grown cushion sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG532240127 or 532240127. Listed at 14 retailers as of October 29, 2026, with prices from $294 to $1,540, a $1,246 spread on the same certified stone. Brilliant Earth lists it at $1,540. 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

1.60
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG532240127
Dimensions6.94 × 6.88 × 4.45 mm
L/W Ratio1.01
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
6.94 mm6.88 mm1.60 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG532240127
Side View
Table 59.5%Crown 35.7°Girdle: MED-THKPavilion 38.7°Culet: NoneDepth 64.7%

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: Oct 30
Current: $1,540 USD|Low: $209 USD|High: $1,600 USD|Avg: $759 USD|-3.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 4$294 USD
Retailer 12$326 USD
Retailer 2$364 USD
Retailer 14$438 USD
Retailer 10$440 USD
Retailer 5$564 USD
Retailer 8$586 USD
Retailer 3$592 USD
Retailer 7$624 USD
Retailer 13$824 USD
Retailer 11$1,075 USD
Retailer 6$1,099 USD
Retailer 9$1,313 USD
Brilliant Earth$1,540 USD

41 data points across 14 retailers

14 retailers$294 USD to $1,540 USD

A
Cheapest Retailer
-
$294 USD
Final sale: no returns
A
Retailer 2
-
$326 USD
View
A
Retailer 3
-
$364 USD
£286 GBP
View
B+
Retailer 4
-
$438 USD
View
A
Retailer 5
-
$440 USD
View
B+
Retailer 6
-
$564 USD
View
A
Retailer 7
-
$586 USD
€558 EUR
View
B+
Retailer 8
-
$592 USD
View
B+
Retailer 9
-
$624 USD
£491 GBP
View
B+
Retailer 10
-
$824 USD
View
Retailer 11
-
$1,075 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$1,099 USD
View
B
Retailer 13
-
$1,313 USD
£1,034 GBP
View
Most Expensive
B
Brilliant Earth
11226005A · Oct 29
$1,540 USD
View
13 more retailers have this diamond
Prices start from $294 USDSave up to $1,246 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
1.60ct Cushion
$294 USD