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Heart|Lab Grown|IGI

1.66ct F VVS1 Heart Lab Grown Diamond

FR • F/VVS1 • IGI LG1203217

Certificate IGI LG1203217

Diamond specifications and retailer prices

From $815 AUD
$571 USD
As of November 1, 2026
Save $16 AUD (2%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $830 AUD at B2C Jewels · As of November 2, 2026
View at B2C Jewels

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), with a standard cut grade and certified by IGI LG1203217 or 1203217. Listed at 2 retailers as of November 1, 2026, with a relatively tight 2% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
Fair
Cut

Specifications

CutFair
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG1203217
Dimensions7.40 × 8.06 × 4.75 mm
L/W Ratio1.09
Top View
7.40 mm8.06 mm1.66 ctF / VVS1
OriginLab Grown
CutFair
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG1203217
Side View
Table 50.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 58.9%

Caratlytics Score

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

Last verified: Nov 1
Current: $830 AUD|Low: $327 AUD|High: $1,547 AUD|Avg: $721 AUD|-25.0%
B2C Jewels
Retailer 2
Retailer 3
Retailer 4
September 25, 2026
Retailer 4$327 AUD
Retailer 2$516 AUD
Retailer 3$815 AUD
B2C Jewels$830 AUD

47 data points across 4 retailers

2 retailers$815 AUD to $830 AUD

B+
Cheapest Retailer
-
$815 AUD
$571 USD
Most Expensive
B+
B2C Jewels
32815302 · Nov 2
$830 AUD
$582 USD
View
1 more retailer has this diamond
Prices start from $815 AUDSave up to $16 AUD

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+
1.66ct Heart
$815 AUD