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Cushion|Lab Grown|IGI

1.65ct F VS1 Cushion Lab Grown Diamond

ID • F/VS1 • IGI LG823624493

Shape and cutting style on the report: Cushion mixed cut

Certificate IGI LG823624493

Diamond specifications and retailer prices

From £403 GBP
$541 USD
As of November 1, 2026
Save £1,621 GBP (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £2,379 GBP at MOH London · As of October 29, 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 LG823624493 or 823624493. Listed at 12 retailers as of October 31, 2026, with a 402% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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 angle31.8°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823624493
Dimensions9.29 × 5.95 × 3.19 mm
L/W Ratio1.56
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.29 mm5.95 mm1.65 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823624493
Side View
Table 63.0%Crown 31.8°Girdle: STK-THKPavilion 40.7°Culet: LargeDepth 53.6%

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: £2,379 GBP|Low: £403 GBP|High: £3,897 GBP|Avg: £1,463 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 2, 2026
Retailer 3£403 GBP
Retailer 8£544 GBP
Retailer 11£641 GBP
Retailer 7£720 GBP
Retailer 5£898 GBP
Retailer 2£1,032 GBP
Retailer 6£1,399 GBP
Retailer 4£1,736 GBP
Retailer 9£1,749 GBP
Retailer 12£2,024 GBP
MOH London£2,379 GBP
Retailer 10£3,897 GBP

32 data points across 12 retailers

12 retailers£403 GBP to £2,024 GBP

A
Cheapest Retailer
-
£403 GBP
$541 USD
Retailer 2
-
£544 GBP
$730 USD
View
Price last confirmed 17 days ago
B+
Retailer 3
-
£641 GBP
$860 USD
View
B+
Retailer 4
-
£720 GBP
$966 USD
View
B+
Retailer 5
-
£898 GBP
View
B
Retailer 6
-
£1,032 GBP
ZAR 22,376 ZAR
View
B
Retailer 7
-
£1,399 GBP
A$2,888 AUD
View
B
Retailer 8
-
£1,736 GBP
$2,330 USD
View
B
Retailer 9
-
£1,749 GBP
View
B
Retailer 10
-
£2,024 GBP
$2,716 USD
View
Most Expensive
MOH London
LG823624493 · Oct 29
£2,379 GBP
View
Price under review
10 more retailers have this diamond
Prices start from £403 GBPSave up to £1,621 GBP

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
£403 GBP