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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG826687907

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG826687907

Diamond specifications and retailer prices

From £459 GBP
$615 USD
As of October 30, 2026
Save £480 GBP (51%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: £939 GBP at Taylor and Hart · As of October 29, 2026
View at Taylor and Hart

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 very-good cut grade and certified by IGI LG826687907 or 826687907. Listed at 5 retailers as of October 29, 2026, with prices from £459 to £939, a £480 spread on the same certified stone. Taylor and Hart lists it at £939. 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

1.65
Carat
D
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.2°
Pavilion angle33.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG826687907
Dimensions8.59 × 5.81 × 3.76 mm
L/W Ratio1.48
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.59 mm5.81 mm1.65 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG826687907
Side View
Table 61.0%Crown 31.2°Girdle: MED-VTKPavilion 33.2°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £459 GBP|Low: £459 GBP|High: £963 GBP|Avg: £606 GBP|-1.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Taylor and Hart
October 30, 2026
Retailer 1£459 GBP
Retailer 4£473 GBP
Retailer 3£482 GBP
Retailer 2£499 GBP
Taylor and Hart£939 GBP

4 data points across 5 retailers

5 retailers£459 GBP to £939 GBP

A
Cheapest Retailer
-
£459 GBP
$615 USD
A
Retailer 2
-
£473 GBP
$634 USD
View
A
Retailer 3
-
£482 GBP
$646 USD
View
A
Retailer 4
-
£499 GBP
View
Most Expensive
B
Taylor and Hart
99FWJ8A · Oct 29
£939 GBP
$1,258 USD
View
4 more retailers have this diamond
Prices start from £459 GBPSave up to £480 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
£459 GBP