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Cushion|Lab Grown|IGI

1.61ct D SI2 Cushion Lab Grown Diamond

ID • D/SI2 • IGI LG528241050

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG528241050

Diamond specifications and retailer prices

From $269 USD
HK$2,100 HKD
As of October 31, 2026
Save $1,001 USD (79%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $1,270 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.61ct lab-grown cushion diamond

This 1.61ct 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 LG528241050 or 528241050. Listed at 10 retailers as of October 31, 2026, with prices from $269 to $1,270, a $1,001 spread on the same certified stone. Brilliant Earth lists it at $1,270. 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

1.61
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.3°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG528241050
Dimensions6.67 × 6.53 × 4.56 mm
L/W Ratio1.02
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
6.67 mm6.53 mm1.61 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG528241050
Side View
Table 60.5%Crown 37.3°Girdle: MED-THKPavilion 37.6°Culet: NoneDepth 69.8%

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 31
Current: $1,270 USD|Low: $335 USD|High: $1,760 USD|Avg: $747 USD|-27.8%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 4$413 USD
Retailer 6$424 USD
Retailer 3$443 USD
Retailer 8$478 USD
Retailer 7$504 USD
Retailer 5$930 USD
Retailer 2$1,135 USD
Brilliant Earth$1,270 USD

42 data points across 8 retailers

10 retailers$269 USD to $1,270 USD

A
Cheapest Retailer
-
$269 USD
HK$2,100 HKD
A
Retailer 2
-
$413 USD
€393 EUR
View
B+
Retailer 3
-
$424 USD
View
A
Retailer 4
-
$443 USD
£349 GBP
View
A
Retailer 5
-
$478 USD
View
A
Retailer 6
-
$504 USD
View
B+
Retailer 7
-
$790 USD
SGD 1,068 SGD
View
Retailer 8
-
$930 USD
View
Price last confirmed 10 days ago
B
Retailer 9
-
$1,135 USD
£894 GBP
View
Most Expensive
B
Brilliant Earth
19056363A · Oct 31
$1,270 USD
View
9 more retailers have this diamond
Prices start from $269 USDSave up to $1,001 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
1.61ct Cushion
$269 USD