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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 $206 USD
As of October 30, 2026
Save $938 USD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,144 USD at Reve Diamonds · As of October 30, 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 October 30, 2026, with prices from $206 to $1,144, a $938 spread on the same certified stone. Reve Diamonds lists it at $1,144. 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
Color
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

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: $376 USD|Low: $206 USD|High: $1,100 USD|Avg: $567 USD|-4.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2$206 USD
Retailer 9$229 USD
Retailer 7$308 USD
Retailer 1$376 USD
Retailer 4$413 USD
Retailer 3$453 USD
Retailer 5$542 USD
Retailer 11$566 USD
Retailer 8$830 USD
Retailer 10$1,070 USD
Retailer 6$1,074 USD

42 data points across 11 retailers

14 retailers$206 USD to $1,144 USD

A
Cheapest Retailer
-
$206 USD
Final sale: no returns
A
Retailer 2
-
$229 USD
View
B+
Retailer 3
-
$308 USD
View
A
Retailer 4
-
$376 USD
€358 EUR
View
A
Retailer 5
-
$413 USD
£326 GBP
View
A
Retailer 6
-
$453 USD
View
A
Retailer 7
-
$526 USD
View
A
Retailer 8
-
$542 USD
View
A
Retailer 9
-
$566 USD
View
B+
Retailer 10
-
$789 USD
View
Retailer 11
-
$830 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$1,070 USD
View
B+
Retailer 13
-
$1,074 USD
£846 GBP
View
Most Expensive
B
Reve Diamonds
EF81FED1D · Oct 30
$1,144 USD
View
13 more retailers have this diamond
Prices start from $206 USDSave up to $938 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
$206 USD