CaratHunter
Plans
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 $293 AUD
$206 USD
As of November 1, 2026
Save $1,335 AUD (82%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,628 AUD 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 $293 to $1,628, a $1,335 spread on the same certified stone. Reve Diamonds lists it at $1,628. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $584 AUD|Low: $293 AUD|High: $1,566 AUD|Avg: $806 AUD|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 2$293 AUD
Retailer 9$326 AUD
Retailer 7$438 AUD
Retailer 5$535 AUD
Retailer 1$584 AUD
Retailer 3$645 AUD
Retailer 6$772 AUD
Retailer 11$806 AUD
Retailer 8$1,182 AUD
Retailer 4$1,522 AUD
Retailer 10$1,523 AUD

43 data points across 11 retailers

14 retailers$293 AUD to $1,628 AUD

A
Cheapest Retailer
-
$293 AUD
$206 USD
Final sale: no returns
Retailer 2
-
$326 AUD
$229 USD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$438 AUD
$308 USD
View
A
Retailer 4
-
$535 AUD
€358 EUR
View
A
Retailer 5
-
$584 AUD
£323 GBP
View
A
Retailer 6
-
$645 AUD
$453 USD
View
A
Retailer 7
-
$749 AUD
$526 USD
View
A
Retailer 8
-
$772 AUD
$542 USD
View
A
Retailer 9
-
$806 AUD
$566 USD
View
B+
Retailer 10
-
$1,123 AUD
$789 USD
View
B+
Retailer 11
-
$1,182 AUD
$830 USD
View
B+
Retailer 12
-
$1,522 AUD
£842 GBP
View
B
Retailer 13
-
$1,523 AUD
$1,070 USD
View
Most Expensive
B
Reve Diamonds
EF81FED1D · Nov 1
$1,628 AUD
$1,144 USD
View
13 more retailers have this diamond
Prices start from $293 AUDSave up to $1,335 AUD

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
$293 AUD