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Cushion|Lab Grown|IGI

1.80ct I VS1 Cushion Lab Grown Diamond

GD • I/VS1 • IGI LG601395034

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG601395034

Diamond specifications and retailer prices

From $391 AUD
$275 USD
As of November 1, 2026
Save $1,344 AUD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,736 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown cushion diamond

This 1.8ct lab-grown cushion sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a standard cut grade and certified by IGI LG601395034 or 601395034. Listed at 16 retailers as of November 1, 2026, with prices from $391 to $1,736, a $1,344 spread on the same certified stone. MOH London lists it at $1,736. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.80
Carat
I
Colour
VS1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle38.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG601395034
Dimensions7.24 × 7.22 × 4.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.24 mm7.22 mm1.80 ctI / VS1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG601395034
Side View
Table 58.0%Crown 31.3°Girdle: STK-THKPavilion 38.9°Culet: NoneDepth 62.6%

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: Nov 1
Current: $1,736 AUD|Low: $349 AUD|High: $2,619 AUD|Avg: $1,105 AUD
MOH London
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
November 1, 2026
Retailer 3$391 AUD
Retailer 12$433 AUD
Retailer 2$567 AUD
Retailer 13$584 AUD
Retailer 7$704 AUD
Retailer 9$744 AUD
Retailer 14$806 AUD
Retailer 6$868 AUD
Retailer 11$1,089 AUD
Retailer 5$1,399 AUD
Retailer 10$1,545 AUD
Retailer 8$1,680 AUD
Retailer 4$1,692 AUD
MOH London$1,736 AUD

42 data points across 14 retailers

16 retailers$391 AUD to $1,736 AUD

A
Cheapest Retailer
-
$391 AUD
$275 USD
Final sale: no returns
Retailer 2
-
$433 AUD
$304 USD
View
Price last confirmed 7 days ago
B+
Retailer 3
-
$492 AUD
HK$2,700 HKD
View
A
Retailer 4
-
$567 AUD
£313 GBP
View
B
Retailer 5
-
$584 AUD
$410 USD
View
B+
Retailer 6
-
$704 AUD
€471 EUR
View
B+
Retailer 7
-
$744 AUD
ZAR 8,447 ZAR
View
B+
Retailer 8
-
$806 AUD
$566 USD
View
B+
Retailer 9
-
$868 AUD
$610 USD
View
B+
Retailer 10
-
$1,089 AUD
$765 USD
View
B+
Retailer 11
-
$1,399 AUD
SGD 1,328 SGD
View
B+
Retailer 12
-
$1,466 AUD
$1,030 USD
View
B
Retailer 13
-
$1,545 AUD
$1,085 USD
View
B
Retailer 14
-
$1,680 AUD
$1,180 USD
View
B
Retailer 15
-
$1,692 AUD
£936 GBP
View
Most Expensive
B
MOH London
LG601395034 · Nov 1
$1,736 AUD
£960 GBP
View
15 more retailers have this diamond
Prices start from $391 AUDSave up to $1,344 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
1.80ct Cushion
$391 AUD