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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

ID • D/VS1 • IGI LG811660159

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811660159

Diamond specifications and retailer prices

From £324 GBP
€413 EUR
As of October 31, 2026
Save £476 GBP (60%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £800 GBP at With Clarity · As of October 30, 2026
View at With Clarity

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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG811660159 or 811660159. Listed at 8 retailers as of October 30, 2026, with prices from £324 to £800, a £476 spread on the same certified stone. With Clarity lists it at £800. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.65
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811660159
Dimensions8.37 × 6.03 × 4.11 mm
L/W Ratio1.39
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.37 mm6.03 mm1.65 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811660159
Side View
Table 63.0%Crown 36°Girdle: MED-STKPavilion 37.6°Culet: NoneDepth 68.2%

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 31
Current: £324 GBP|Low: £215 GBP|High: £860 GBP|Avg: £599 GBP|-4.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
With Clarity
October 31, 2026
Retailer 4£215 GBP
Retailer 1£324 GBP
Retailer 6£443 GBP
Retailer 2£448 GBP
Retailer 5£717 GBP
Retailer 3£771 GBP
Retailer 7£799 GBP
With Clarity£800 GBP

24 data points across 8 retailers

8 retailers£324 GBP to £800 GBP

Retailer 1
-
£215 GBP
Price last confirmed 14 days ago
A
Retailer 2
-
£324 GBP
€413 EUR
View
A
Retailer 3
-
£443 GBP
$593 USD
View
A
Retailer 4
-
£448 GBP
A$924 AUD
View
B+
Retailer 5
-
£717 GBP
$961 USD
View
B+
Retailer 6
-
£771 GBP
View
Retailer 7
-
£799 GBP
SGD 1,446 SGD
View
Price last confirmed 18 days ago
Most Expensive
B+
With Clarity
811660159 · Oct 30
£800 GBP
$1,072 USD
View
7 more retailers have this diamond
Prices start from £324 GBPSave up to £476 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
£324 GBP