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1.66ct J VVS2 Round Lab Grown Diamond

EX • J/VVS2 • IGI LG371983073

Shape and cutting style on the report: Round brilliant

Certificate IGI LG371983073

Diamond specifications and retailer prices

From £715 GBP
$960 USD
As of November 2, 2026
1 retailer carries this diamond
Only listing: £715 GBP at Brilliant Earth
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at Brilliant Earth

About this 1.66ct lab-grown round diamond

This 1.66ct lab-grown round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG371983073 or 371983073. Listed at a single retailer as of November 2, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
J
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG371983073
Dimensions7.71 × 7.65 × 4.57 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Chemical Vapor Deposition (CVD) laboratory grown diamond is classified as Type IIa.
Top View
7.71 mm7.65 mm1.66 ctJ / VVS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG371983073
Side View
Table 62.0%Crown 32°GirdlePavilion 41.2°Culet: NoneDepth 59.4%

Caratlytics Score

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

Last verified: Nov 2
Current: £715 GBP|Low: £715 GBP|High: £946 GBP|Avg: £862 GBP|-24.4%
October 30, 2026
Brilliant Earth£715 GBP

3 data points across 1 retailer

1 retailer

B+
Brilliant Earth
19766986A · Nov 2
£715 GBP
$960 USD
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B+
1.66ct Round
£715 GBP