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Oval|Lab Grown|IGI

1.66ct K SI2 Oval Lab Grown Diamond

ID • K/SI2 • IGI LG445037333

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG445037333

Diamond specifications and retailer prices

From $1,882 USD
As of November 5, 2026
Save $4,336 USD (70%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $6,218 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.66ct lab-grown oval diamond

This 1.66ct lab-grown oval sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG445037333 or 445037333. Listed at 8 retailers as of November 5, 2026, with prices from $1,882 to $6,218, a $4,336 spread on the same certified stone. MOH London lists it at $6,218. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.66
Carat
K
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG445037333
Dimensions9.30 × 6.72 × 4.20 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
9.30 mm6.72 mm1.66 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG445037333
Side View
Table 57.0%Crown 33.3°Girdle: STK-THKPavilion 40.8°Culet: NoneDepth 62.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $6,218 USD|Low: $1,807 USD|High: $6,318 USD|Avg: $3,473 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$1,882 USD
Retailer 7$2,048 USD
Retailer 4$2,183 USD
Retailer 8$2,801 USD
Retailer 5$3,422 USD
Retailer 2$3,585 USD
Retailer 6$4,092 USD
Retailer 9$4,886 USD
MOH London$6,218 USD

14 data points across 9 retailers

8 retailers$1,882 USD to $6,218 USD

B+
Cheapest Retailer
-
$1,882 USD
B+
Retailer 2
-
$2,048 USD
View
B
Retailer 3
-
$2,183 USD
View
Retailer 4
-
$2,183 USD
View
Price last confirmed 26 days ago
B
Retailer 5
-
$3,422 USD
View
B
Retailer 6
-
$3,585 USD
View
B
Retailer 7
-
$4,092 USD
View
Most Expensive
B
MOH London
LG445037333 · Nov 5
$6,218 USD
£4,896 GBP
View
7 more retailers have this diamond
Prices start from $1,882 USDSave up to $4,336 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.

B+
1.66ct Oval
$1,882 USD