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Round|Lab Grown|IGI

1.51ct K SI1 Round Lab Grown Diamond

ID • K/SI1 • IGI LG462132943

Shape and cutting style on the report: Round brilliant

Certificate IGI LG462132943

Diamond specifications and retailer prices

From $940 USD
As of November 5, 2026
Save $2,758 USD (75%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,698 USD at MOH London · As of November 3, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG462132943 or 462132943. Listed at 10 retailers as of November 3, 2026, with prices from $940 to $3,698, a $2,758 spread on the same certified stone. MOH London lists it at $3,698. 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

1.51
Carat
K
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG462132943
Dimensions7.35 × 7.39 × 4.57 mm
L/W Ratio1.01
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
7.35 mm7.39 mm1.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG462132943
Side View
Table 56.0%Crown 34.8°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 61.9%

Caratlytics Score

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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: $3,698 USD|Low: $902 USD|High: $3,748 USD|Avg: $1,778 USD|-1.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 5$940 USD
Retailer 6$1,090 USD
Retailer 8$1,090 USD
Retailer 2$1,193 USD
Retailer 3$1,265 USD
Retailer 9$1,605 USD
Retailer 7$1,746 USD
Retailer 4$2,350 USD
MOH London$3,698 USD

29 data points across 9 retailers

10 retailers$940 USD to $3,698 USD

A
Cheapest Retailer
-
$940 USD
A
Retailer 2
-
$1,023 USD
View
Retailer 3
-
$1,090 USD
View
Price last confirmed 25 days ago
A
Retailer 4
-
$1,090 USD
View
A
Retailer 5
-
$1,193 USD
View
B+
Retailer 6
-
$1,265 USD
View
B
Retailer 7
-
$1,746 USD
View
B
Retailer 8
-
$2,350 USD
View
B
Retailer 9
-
$3,066 USD
View
Most Expensive
B
MOH London
LG462132943 · Nov 3
$3,698 USD
£2,912 GBP
View
9 more retailers have this diamond
Prices start from $940 USDSave up to $2,758 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
1.51ct Round
$940 USD