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Heart|Lab Grown|IGI

1.66ct F VVS1 Heart Lab Grown Diamond

F/VVS1 • IGI LGG1203217

Certificate IGI LGG1203217

Diamond specifications and retailer prices

From £444 GBP
ZAR 9,628 ZAR
As of November 2, 2026
1 retailer carries this diamond
Only listing: £444 GBP at Cape Diamonds
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 Cape Diamonds

About this 1.66ct lab-grown heart diamond

This 1.66ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and VVS1 clarity (very-very-slightly-included) and certified by IGI LGG1203217 or G1203217. 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. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.66
Carat
F
Colour
VVS1
Clarity
-
Cut

Specifications

Cut
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LGG1203217
Dimensions7.40 × 8.06 mm
L/W Ratio1.09
Top View
7.40 mm8.06 mm1.66 ctF / VVS1
OriginLab Grown
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LGG1203217
Side View
Table 49.5%CrownGirdle: MED-STKPavilionCuletDepth 58.9%

Caratlytics Score

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

Last verified: Nov 2
Current: £444 GBP|Low: £433 GBP|High: £444 GBP|Avg: £439 GBP|+2.6%
November 2, 2026
Cape Diamonds£444 GBP

10 data points across 1 retailer

1 retailer

B+
Cape Diamonds
cert_G1203217 · Nov 2
£444 GBP
ZAR 9,628 ZAR
View

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B+
1.66ct Heart
£444 GBP