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1.37ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG478112006

Shape and cutting style on the report: Round brilliant

Certificate IGI LG478112006

Diamond specifications and retailer prices

From $690 USD
As of October 29, 2026
Save $2,470 USD (78%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,160 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.37ct lab-grown round diamond

This 1.37ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG478112006 or 478112006. Listed at 10 retailers as of October 29, 2026, with prices from $690 to $3,160, a $2,470 spread on the same certified stone. MOH London lists it at $3,160. 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

1.37
Carat
I
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.1°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG478112006
Dimensions7.24 × 7.21 × 4.37 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
7.24 mm7.21 mm1.37 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG478112006
Side View
Table 57.5%Crown 32.1°Girdle: THN-STKPavilion 41.3°Culet: NoneDepth 60.6%

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: Oct 29
Current: $3,160 USD|Low: $662 USD|High: $3,180 USD|Avg: $1,354 USD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 6$690 USD
Retailer 9$751 USD
Retailer 2$770 USD
Retailer 11$772 USD
Retailer 7$800 USD
Retailer 3$816 USD
Retailer 12$1,283 USD
Retailer 8$1,302 USD
Retailer 4$1,791 USD
Retailer 5$1,971 USD
Retailer 10$2,250 USD
MOH London$3,160 USD

17 data points across 12 retailers

10 retailers$690 USD to $3,160 USD

A
Cheapest Retailer
-
$690 USD
A
Retailer 2
-
$751 USD
View
A
Retailer 3
-
$770 USD
View
A
Retailer 4
-
$772 USD
View
Final sale: no returns
Retailer 5
-
$800 USD
View
Price last confirmed 15 days ago
A
Retailer 6
-
$800 USD
View
B+
Retailer 7
-
$1,302 USD
View
B
Retailer 8
-
$1,971 USD
View
B
Retailer 9
-
$2,250 USD
View
Most Expensive
B
MOH London
LG478112006 · Oct 29
$3,160 USD
£2,488 GBP
View
9 more retailers have this diamond
Prices start from $690 USDSave up to $2,470 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
1.37ct Round
$690 USD