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Round|Lab Grown|IGI

1.12ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG499105209

Shape and cutting style on the report: Round brilliant

Certificate IGI LG499105209

Diamond specifications and retailer prices

From $451 USD
As of November 5, 2026
Save $1,601 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,052 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1.12ct lab-grown round diamond

This 1.12ct lab-grown round sits in the classic one-carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG499105209 or 499105209. Listed at 10 retailers as of November 3, 2026, with prices from $451 to $2,052, a $1,601 spread on the same certified stone. MOH London lists it at $2,052. 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

1.12
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG499105209
Dimensions6.68 × 6.70 × 4.08 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
6.68 mm6.70 mm1.12 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG499105209
Side View
Table 58.0%Crown 33.9°GirdlePavilion 40.8°Culet: NoneDepth 61.0%

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 5
Current: $2,052 USD|Low: $433 USD|High: $2,078 USD|Avg: $1,015 USD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$451 USD
Retailer 6$559 USD
Retailer 8$559 USD
Retailer 3$700 USD
Retailer 2$772 USD
Retailer 7$877 USD
Retailer 9$977 USD
Retailer 4$1,502 USD
MOH London$2,052 USD

32 data points across 9 retailers

10 retailers$451 USD to $2,052 USD

A
Cheapest Retailer
-
$451 USD
A
Retailer 2
-
$505 USD
View
A
Retailer 3
-
$559 USD
View
Retailer 4
-
$559 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$700 USD
View
A
Retailer 6
-
$772 USD
View
B+
Retailer 7
-
$877 USD
View
B
Retailer 8
-
$1,502 USD
View
B
Retailer 9
-
$1,796 USD
View
Most Expensive
B
MOH London
LG499105209 · Nov 3
$2,052 USD
£1,616 GBP
View
9 more retailers have this diamond
Prices start from $451 USDSave up to $1,601 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
1.12ct Round
$451 USD