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Cushion|Lab Grown|IGI

1.65ct F VVS1 Cushion Lab Grown Diamond

VG • F/VVS1 • IGI LG760504602

Shape and cutting style on the report: Square cushion modified brilliant

Certificate IGI LG760504602

Diamond specifications and retailer prices

From £306 GBP
$410 USD
As of November 1, 2026
Save £604 GBP (66%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £1,137 GBP at Rare Carat · As of August 31, 2026
View at Rare Carat

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 VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by IGI LG760504602 or 760504602. Listed at 8 retailers as of November 1, 2026, with a 198% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.3°
Pavilion angle34.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG760504602
Dimensions7.18 × 6.85 × 4.09 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.18 mm6.85 mm1.65 ctF / VVS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG760504602
Side View
Table 66.0%Crown 32.3°Girdle: MED-THKPavilion 34.7°Culet: NoneDepth 59.7%

Caratlytics Score

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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: Nov 1
Current: £428 GBP|Low: £306 GBP|High: £1,039 GBP|Avg: £538 GBP|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5£306 GBP
Retailer 3£371 GBP
Retailer 4£417 GBP
Retailer 1£428 GBP
Retailer 6£537 GBP
Retailer 7£769 GBP
Retailer 2£909 GBP

44 data points across 7 retailers

8 retailers£306 GBP to £909 GBP

B+
Cheapest Retailer
-
£306 GBP
$410 USD
A
Retailer 2
-
£371 GBP
€474 EUR
View
A
Retailer 3
-
£417 GBP
$560 USD
View
A
Retailer 4
-
£428 GBP
View
B+
Retailer 5
-
£537 GBP
$721 USD
View
B
Retailer 6
-
£769 GBP
$1,031 USD
View
B
Retailer 7
-
£909 GBP
View
Most Expensive
Rare Carat
17V760504602 · Aug 31
£1,137 GBP
$1,526 USD
View
Price last confirmed 63 days ago
7 more retailers have this diamond
Prices start from £306 GBPSave up to £604 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
£306 GBP