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Round|Lab Grown|IGI

1.66ct F VVS1 Round Lab Grown Diamond

ID • F/VVS1 • IGI LG794689958

Shape and cutting style on the report: Round brilliant

Certificate IGI LG794689958

Diamond specifications and retailer prices

From $221 USD
As of November 1, 2026
Save $1,439 USD (87%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $1,660 USD at Brilliant Earth · As of November 2, 2026
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 F colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG794689958 or 794689958. Listed at 13 retailers as of November 1, 2026, with prices from $221 to $1,660, a $1,439 spread on the same certified stone. Brilliant Earth lists it at $1,660. 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
VVS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG794689958
Dimensions7.60 × 7.55 × 4.66 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.60 mm7.55 mm1.66 ctF / VVS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG794689958
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.5%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: $1,660 USD|Low: $221 USD|High: $1,920 USD|Avg: $886 USD|-13.5%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 5$221 USD
Retailer 14$256 USD
Retailer 9$419 USD
Retailer 11$461 USD
Retailer 6$576 USD
Retailer 16$609 USD
Retailer 2$640 USD
Retailer 3$881 USD
Retailer 12$884 USD
Retailer 15$1,000 USD
Retailer 8$1,052 USD
Retailer 7$1,059 USD
Retailer 10$1,099 USD
Retailer 4$1,111 USD
Retailer 13$1,154 USD
Brilliant Earth$1,660 USD

30 data points across 16 retailers

13 retailers$221 USD to $1,660 USD

A
Cheapest Retailer
-
$221 USD
A
Retailer 2
-
$256 USD
View
A
Retailer 3
-
$419 USD
£330 GBP
View
A
Retailer 4
-
$461 USD
€439 EUR
View
B+
Retailer 5
-
$609 USD
View
B+
Retailer 6
-
$640 USD
A$985 AUD
View
B+
Retailer 7
-
$881 USD
View
B+
Retailer 8
-
$884 USD
View
B
Retailer 9
-
$1,000 USD
View
B+
Retailer 10
-
$1,099 USD
£865 GBP
View
Retailer 11
-
$1,111 USD
SGD 1,501 SGD
View
Price last confirmed 21 days ago
B
Retailer 12
-
$1,154 USD
View
Most Expensive
B
Brilliant Earth
20805928A · Nov 2
$1,660 USD
View
12 more retailers have this diamond
Prices start from $221 USDSave up to $1,439 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 Round
$221 USD