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Marquise|Lab Grown|IGI

1.66ct F VS2 Marquise Lab Grown Diamond

EX • F/VS2 • IGI LG831646757

Certificate IGI LG831646757

Diamond specifications and retailer prices

From $352 USD
As of November 2, 2026
Save $628 USD (64%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $980 USD at Novita Diamonds · As of October 29, 2026
View at Novita Diamonds

About this 1.66ct lab-grown marquise diamond

This 1.66ct lab-grown marquise sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS2 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG831646757 or 831646757. Listed at 5 retailers as of October 29, 2026, with prices from $352 to $980, a $628 spread on the same certified stone. Novita Diamonds lists it at $980. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.66
Carat
F
Color
VS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG831646757
Dimensions12.28 × 6.23 × 3.88 mm
L/W Ratio1.97
Top View
12.28 mm6.23 mm1.66 ctF / VS2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG831646757
Side View
Table 58.0%CrownGirdlePavilionCulet: NoneDepth 62.3%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $980 USD|Low: $352 USD|High: $994 USD|Avg: $519 USD|-1.4%
Novita Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 4$352 USD
Retailer 5$390 USD
Retailer 3$458 USD
Retailer 2$508 USD
Retailer 6$562 USD
Novita Diamonds$980 USD

11 data points across 6 retailers

5 retailers$352 USD to $980 USD

A
Cheapest Retailer
-
$352 USD
B+
Retailer 2
-
$390 USD
View
A
Retailer 3
-
$458 USD
View
A
Retailer 4
-
$508 USD
€484 EUR
View
Most Expensive
B+
Novita Diamonds
cert_831646757 · Oct 29
$980 USD
A$1,507 AUD
View
4 more retailers have this diamond
Prices start from $352 USDSave up to $628 USD

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
1.66ct Marquise
$352 USD