CaratHunter
Plans
Cushion|Lab Grown|IGI

1.65ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG816636331

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816636331

Diamond specifications and retailer prices

From $420 AUD
£232 GBP
As of November 1, 2026
Save $1,258 AUD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,678 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.65ct lab-grown cushion diamond

This 1.65ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG816636331 or 816636331. Listed at 9 retailers as of November 1, 2026, with prices from $420 to $1,678, a $1,258 spread on the same certified stone. MOH London lists it at $1,678. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
F
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle35.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816636331
Dimensions8.46 × 5.93 × 4.05 mm
L/W Ratio1.43
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.46 mm5.93 mm1.65 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816636331
Side View
Table 61.0%Crown 35.7°Girdle: MED-THKPavilion 35.4°Culet: NoneDepth 68.3%

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: $1,678 AUD|Low: $419 AUD|High: $1,687 AUD|Avg: $1,191 AUD|+6.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 1, 2026
Retailer 2$420 AUD
Retailer 3$605 AUD
Retailer 4$837 AUD
Retailer 8$839 AUD
Retailer 7$1,330 AUD
Retailer 6$1,483 AUD
Retailer 9$1,506 AUD
Retailer 5$1,537 AUD
MOH London$1,678 AUD

33 data points across 9 retailers

9 retailers$420 AUD to $1,678 AUD

A
Cheapest Retailer
-
$420 AUD
£232 GBP
A
Retailer 2
-
$605 AUD
€405 EUR
View
A
Retailer 3
-
$837 AUD
View
A
Retailer 4
-
$839 AUD
$589 USD
View
B+
Retailer 5
-
$1,330 AUD
$934 USD
View
B+
Retailer 6
-
$1,483 AUD
$1,042 USD
View
Retailer 7
-
$1,506 AUD
SGD 1,430 SGD
View
Price last confirmed 20 days ago
B+
Retailer 8
-
$1,537 AUD
$1,080 USD
View
Most Expensive
B
MOH London
LG816636331 · Nov 1
$1,678 AUD
£928 GBP
View
8 more retailers have this diamond
Prices start from $420 AUDSave up to $1,258 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
1.65ct Cushion
$420 AUD