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Round|Lab Grown|IGI

2.12ct K SI2 Round Lab Grown Diamond

ID • K/SI2 • IGI LG490190999

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490190999

Diamond specifications and retailer prices

From $3,397 USD
As of November 5, 2026
Save $2,718 USD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $9,961 USD at MOH London · As of November 5, 2026
View at MOH London

About this 2.12ct lab-grown round diamond

This 2.12ct lab-grown round sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490190999 or 490190999. Listed at 8 retailers as of November 4, 2026, with a 80% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

2.12
Carat
K
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.5°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490190999
Dimensions8.19 × 8.24 × 5.10 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
8.19 mm8.24 mm2.12 ctK / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG490190999
Side View
Table 55.0%Crown 35.5°Girdle: MediumPavilion 40.4°Culet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $9,961 USD|Low: $3,261 USD|High: $10,122 USD|Avg: $5,643 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 3$3,397 USD
Retailer 6$3,696 USD
Retailer 4$3,941 USD
Retailer 8$4,556 USD
Retailer 7$4,924 USD
Retailer 2$5,435 USD
Retailer 5$6,115 USD
Retailer 9$8,878 USD
MOH London$9,961 USD

13 data points across 9 retailers

8 retailers$3,397 USD to $6,115 USD

B
Cheapest Retailer
-
$3,397 USD
B
Retailer 2
-
$3,696 USD
View
B
Retailer 3
-
$3,941 USD
View
Retailer 4
-
$3,941 USD
View
Price last confirmed 25 days ago
B
Retailer 5
-
$4,924 USD
View
B
Retailer 6
-
$5,435 USD
View
C
Retailer 7
-
$6,115 USD
View
Most Expensive
MOH London
LG490190999 · Nov 5
$9,961 USD
£7,843 GBP
View
Price under review
7 more retailers have this diamond
Prices start from $3,397 USDSave up to $2,718 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
2.12ct Round
$3,397 USD