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Cushion|Lab Grown|IGI

1.60ct F VVS1 Cushion Lab Grown Diamond

ID • F/VVS1 • IGI LG665408971

Shape and cutting style on the report: Square cushion brilliant

Certificate IGI LG665408971

Diamond specifications and retailer prices

From £250 GBP
$335 USD
As of November 1, 2026
Save £1,198 GBP (83%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £1,448 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.6ct lab-grown cushion diamond

This 1.6ct 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 top-tier cut grade and certified by IGI LG665408971 or 665408971. Listed at 20 retailers as of October 31, 2026, with prices from £250 to £1,448, a £1,198 spread on the same certified stone. Brilliant Earth lists it at £1,448. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.60
Carat
F
Colour
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.2°
Pavilion angle41.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG665408971
Dimensions7.05 × 6.84 × 4.66 mm
L/W Ratio1.03
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
7.05 mm6.84 mm1.60 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG665408971
Side View
Table 59.0%Crown 40.2°Girdle: MED-STKPavilion 41.7°Culet: NoneDepth 68.1%

Caratlytics Score

How it works →
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: £1,448 GBP|Low: £248 GBP|High: £1,448 GBP|Avg: £701 GBP|+0.5%
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
Retailer 16
Retailer 17
Retailer 18
November 2, 2026
Retailer 12£250 GBP
Retailer 6£277 GBP
Retailer 16£418 GBP
Retailer 8£454 GBP
Retailer 5£473 GBP
Retailer 11£478 GBP
Retailer 2£492 GBP
Retailer 14£513 GBP
Retailer 4£525 GBP
Retailer 18£646 GBP
Retailer 7£716 GBP
Retailer 17£918 GBP
Retailer 10£927 GBP
Retailer 15£1,066 GBP
Retailer 13£1,111 GBP
Retailer 3£1,116 GBP
Retailer 9£1,128 GBP
Brilliant Earth£1,448 GBP

35 data points across 18 retailers

20 retailers£250 GBP to £1,448 GBP

A
Cheapest Retailer
-
£250 GBP
$335 USD
Final sale: no returns
Retailer 2
-
£277 GBP
$371 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
£418 GBP
$560 USD
View
A
Retailer 4
-
£454 GBP
$608 USD
View
A
Retailer 5
-
£473 GBP
$634 USD
View
A
Retailer 6
-
£478 GBP
ZAR 10,347 ZAR
View
A
Retailer 7
-
£492 GBP
View
A
Retailer 8
-
£513 GBP
€654 EUR
View
A
Retailer 9
-
£525 GBP
$703 USD
View
B+
Retailer 10
-
£646 GBP
A$1,332 AUD
View
B+
Retailer 11
-
£716 GBP
$960 USD
View
B+
Retailer 12
-
£918 GBP
A$1,892 AUD
View
B
Retailer 13
-
£927 GBP
$1,242 USD
View
B
Retailer 14
-
£1,022 GBP
$1,370 USD
View
B
Retailer 15
-
£1,066 GBP
$1,428 USD
View
B
Retailer 16
-
£1,111 GBP
View
B
Retailer 17
-
£1,116 GBP
$1,495 USD
View
B
Retailer 18
-
£1,128 GBP
$1,511 USD
View
B
Retailer 19
-
£1,220 GBP
$1,635 USD
View
Most Expensive
B
Brilliant Earth
13236154A · Oct 31
£1,448 GBP
$1,940 USD
View
19 more retailers have this diamond
Prices start from £250 GBPSave up to £1,198 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
1.60ct Cushion
£250 GBP