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Cushion|Lab Grown|IGI

1.65ct D VS2 Cushion Lab Grown Diamond

ID • D/VS2 • IGI LG550256516

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG550256516

Diamond specifications and retailer prices

From £188 GBP
$252 USD
As of October 30, 2026
Save £894 GBP (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £1,082 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG550256516 or 550256516. Listed at 16 retailers as of October 29, 2026, with prices from £188 to £1,082, a £894 spread on the same certified stone. Brilliant Earth lists it at £1,082. 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
VS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle31.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG550256516
Dimensions6.60 × 6.47 × 4.31 mm
L/W Ratio1.02
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.60 mm6.47 mm1.65 ctD / VS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG550256516
Side View
Table 60.5%Crown 36.6°Girdle: STK-THKPavilion 31.5°Culet: NoneDepth 66.6%

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: Oct 30
Current: £1,082 GBP|Low: £188 GBP|High: £1,134 GBP|Avg: £530 GBP|-4.6%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 3£188 GBP
Retailer 11£208 GBP
Retailer 2£280 GBP
Retailer 7£338 GBP
Retailer 5£389 GBP
Retailer 4£428 GBP
Retailer 12£458 GBP
Retailer 10£544 GBP
Retailer 6£779 GBP
Retailer 9£810 GBP
Retailer 8£837 GBP
Brilliant Earth£1,082 GBP

45 data points across 12 retailers

16 retailers£188 GBP to £1,082 GBP

A
Cheapest Retailer
-
£188 GBP
$252 USD
Final sale: no returns
A
Retailer 2
-
£208 GBP
$279 USD
View
B+
Retailer 3
-
£280 GBP
$375 USD
View
A
Retailer 4
-
£338 GBP
€431 EUR
View
A
Retailer 5
-
£389 GBP
View
A
Retailer 6
-
£428 GBP
$574 USD
View
A
Retailer 7
-
£445 GBP
$596 USD
View
A
Retailer 8
-
£458 GBP
$613 USD
View
B+
Retailer 9
-
£544 GBP
$729 USD
View
B+
Retailer 10
-
£709 GBP
$951 USD
View
B+
Retailer 11
-
£779 GBP
A$1,606 AUD
View
Retailer 12
-
£810 GBP
$1,085 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
£819 GBP
View
B+
Retailer 14
-
£837 GBP
View
B
Retailer 15
-
£951 GBP
$1,274 USD
View
Most Expensive
B
Brilliant Earth
10789636A · Oct 29
£1,082 GBP
$1,450 USD
View
15 more retailers have this diamond
Prices start from £188 GBPSave up to £894 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
£188 GBP