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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

VG • D/VS1 • IGI LG819639876

Certificate IGI LG819639876

Diamond specifications and retailer prices

From £1,031 GBP
$1,381 USD
As of October 29, 2026
Save £372 GBP (27%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £1,403 GBP at Zales · As of October 30, 2026
View at Zales

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 LG819639876 or 819639876. Listed at 4 retailers as of October 29, 2026, with prices from £1,031 to £1,403, a £372 spread on the same certified stone. Zales lists it at £1,403. 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
OriginLab Grown
Grading LabIGI
CertificateIGI LG819639876
Dimensions8.84 × 6.09 × 4.01 mm
L/W Ratio1.45
Top View
8.84 mm6.09 mm1.65 ctD / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG819639876
Side View
Table 59.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 65.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
Unlock full score analysis
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Price History

Last verified: Oct 29
Current: £1,031 GBP|Low: £1,031 GBP|High: £1,403 GBP|Avg: £1,320 GBP
Retailer 1
Retailer 2
Retailer 3
Zales
September 26, 2026
Retailer 1£1,031 GBP
Retailer 2£1,172 GBP
Retailer 3£1,403 GBP
Zales£1,403 GBP

4 data points across 4 retailers

4 retailers£1,031 GBP to £1,403 GBP

B
Cheapest Retailer
-
£1,031 GBP
$1,381 USD
B
Retailer 2
-
£1,172 GBP
$1,570 USD
View
B
Retailer 3
-
£1,403 GBP
$1,880 USD
View
Most Expensive
B
Zales
528982965 · Oct 30
£1,403 GBP
$1,880 USD
View
3 more retailers have this diamond
Prices start from £1,031 GBPSave up to £372 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.

B
1.65ct Cushion
£1,031 GBP