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Cushion|Lab Grown|IGI

1.65ct D VS1 Cushion Lab Grown Diamond

EX • D/VS1 • IGI LG698513789

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

Certificate IGI LG698513789

Diamond specifications and retailer prices

From £216 GBP
$290 USD
As of October 30, 2026
Save £1,448 GBP (87%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £1,664 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG698513789 or 698513789. Listed at 15 retailers as of October 29, 2026, with prices from £216 to £1,664, a £1,448 spread on the same certified stone. Brilliant Earth lists it at £1,664. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.9°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698513789
Dimensions6.73 × 6.73 × 4.60 mm
L/W Ratio1.00
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
6.73 mm6.73 mm1.65 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698513789
Side View
Table 64.0%Crown 35.9°Girdle: MED-THKPavilion 40.3°Culet: NoneDepth 68.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £1,664 GBP|Low: £216 GBP|High: £1,806 GBP|Avg: £618 GBP|-7.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 30, 2026
Retailer 5£216 GBP
Retailer 3£240 GBP
Retailer 15£322 GBP
Retailer 11£325 GBP
Retailer 10£412 GBP
Retailer 8£433 GBP
Retailer 2£458 GBP
Retailer 4£459 GBP
Retailer 12£558 GBP
Retailer 14£591 GBP
Retailer 6£809 GBP
Retailer 13£821 GBP
Retailer 9£967 GBP
Retailer 7£1,032 GBP
Brilliant Earth£1,664 GBP

41 data points across 15 retailers

15 retailers£216 GBP to £1,664 GBP

A
Cheapest Retailer
-
£216 GBP
$290 USD
Final sale: no returns
A
Retailer 2
-
£240 GBP
$321 USD
View
B+
Retailer 3
-
£322 GBP
$432 USD
View
A
Retailer 4
-
£325 GBP
$435 USD
View
A
Retailer 5
-
£412 GBP
ZAR 8,920 ZAR
View
A
Retailer 6
-
£433 GBP
€552 EUR
View
A
Retailer 7
-
£458 GBP
View
A
Retailer 8
-
£459 GBP
$615 USD
View
B+
Retailer 9
-
£558 GBP
A$1,150 AUD
View
B+
Retailer 10
-
£591 GBP
$792 USD
View
B
Retailer 11
-
£809 GBP
$1,084 USD
View
Retailer 12
-
£821 GBP
$1,100 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
£967 GBP
View
B
Retailer 14
-
£1,032 GBP
$1,382 USD
View
Most Expensive
B
Brilliant Earth
21560026A · Oct 29
£1,664 GBP
$2,230 USD
View
14 more retailers have this diamond
Prices start from £216 GBPSave up to £1,448 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
£216 GBP