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Cushion|Lab Grown|IGI

1.61ct G SI1 Cushion Lab Grown Diamond

ID • G/SI1 • IGI LG523278357

Shape and cutting style on the report: Cushion brilliant

Certificate IGI LG523278357

Diamond specifications and retailer prices

From $263 SGD
$206 USD
As of November 1, 2026
Save $1,199 SGD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,462 SGD at Reve Diamonds · As of November 1, 2026
View at Reve Diamonds

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG523278357 or 523278357. Listed at 14 retailers as of November 1, 2026, with prices from $263 to $1,462, a $1,199 spread on the same certified stone. Reve Diamonds lists it at $1,462. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle30.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG523278357
Dimensions7.54 × 6.05 × 4.08 mm
L/W Ratio1.25
Girdle conditionFaceted
Culet sizePointed
Cert comments
Faint Blue 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
7.54 mm6.05 mm1.61 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG523278357
Side View
Table 58.0%Crown 35.8°Girdle: MED-THKPavilion 30.4°Culet: NoneDepth 67.4%

Caratlytics Score

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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: $1,367 SGD|Low: $263 SGD|High: $1,406 SGD|Avg: $725 SGD|-0.1%
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 2$263 SGD
Retailer 9$293 SGD
Retailer 7$394 SGD
Retailer 5$481 SGD
Retailer 4$529 SGD
Retailer 3$580 SGD
Retailer 6$693 SGD
Retailer 11$724 SGD
Retailer 8$1,061 SGD
Retailer 1$1,367 SGD
Retailer 10$1,368 SGD

42 data points across 11 retailers

14 retailers$263 SGD to $1,462 SGD

A
Cheapest Retailer
-
$263 SGD
$206 USD
Final sale: no returns
Retailer 2
-
$293 SGD
$229 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$394 SGD
$308 USD
View
A
Retailer 4
-
$481 SGD
€358 EUR
View
A
Retailer 5
-
$529 SGD
£326 GBP
View
A
Retailer 6
-
$580 SGD
$453 USD
View
A
Retailer 7
-
$672 SGD
$526 USD
View
A
Retailer 8
-
$693 SGD
$542 USD
View
A
Retailer 9
-
$724 SGD
$566 USD
View
B+
Retailer 10
-
$1,009 SGD
$789 USD
View
B+
Retailer 11
-
$1,061 SGD
$830 USD
View
B+
Retailer 12
-
$1,367 SGD
£842 GBP
View
B
Retailer 13
-
$1,368 SGD
$1,070 USD
View
Most Expensive
B
Reve Diamonds
EF81FED1D · Nov 1
$1,462 SGD
$1,144 USD
View
13 more retailers have this diamond
Prices start from $263 SGDSave up to $1,199 SGD

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
$263 SGD