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Cushion|Lab Grown|IGI

1.89ct F VVS2 Cushion Lab Grown Diamond

ID • F/VVS2 • IGI LG816686190

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG816686190

Diamond specifications and retailer prices

From £944 GBP
$1,265 USD
As of November 1, 2026
Save £571 GBP (38%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £1,515 GBP at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.89ct lab-grown cushion diamond

This 1.89ct lab-grown cushion sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG816686190 or 816686190. Listed at 2 retailers as of October 31, 2026, with prices from £944 to £1,515, a £571 spread on the same certified stone. Brilliant Earth lists it at £1,515. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.89
Carat
F
Colour
VVS2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle37.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG816686190
Dimensions8.24 × 6.76 × 4.39 mm
L/W Ratio1.22
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.24 mm6.76 mm1.89 ctF / VVS2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG816686190
Side View
Table 61.0%Crown 33.8°Girdle: STK-THKPavilion 37.3°Culet: NoneDepth 64.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: £1,515 GBP|Low: £342 GBP|High: £1,515 GBP|Avg: £683 GBP
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
October 19, 2026
Retailer 8£342 GBP
Retailer 11£388 GBP
Retailer 3£415 GBP
Retailer 10£420 GBP
Retailer 6£432 GBP
Retailer 9£444 GBP
Retailer 12£584 GBP
Retailer 4£656 GBP
Retailer 7£772 GBP
Retailer 13£855 GBP
Retailer 2£944 GBP
Retailer 5£1,098 GBP
Brilliant Earth£1,515 GBP

3 data points across 13 retailers

2 retailers£944 GBP to £1,515 GBP

B+
Cheapest Retailer
-
£944 GBP
$1,265 USD
Most Expensive
B
Brilliant Earth
20710896A · Oct 31
£1,515 GBP
$2,030 USD
View
1 more retailer has this diamond
Prices start from £944 GBPSave up to £571 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+
1.89ct Cushion
£944 GBP