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Round|Lab Grown|IGI

1.37ct E SI1 Round Lab Grown Diamond

ID • E/SI1 • IGI LG681531173

Shape and cutting style on the report: Round brilliant

Certificate IGI LG681531173

Diamond specifications and retailer prices

From $214 SGD
$167 USD
As of October 29, 2026
Save $1,036 SGD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,250 SGD 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG681531173 or 681531173. Listed at 11 retailers as of October 29, 2026, with prices from $214 to $1,250, a $1,036 spread on the same certified stone. MOH London lists it at $1,250. 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
E
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG681531173
Dimensions7.16 × 7.21 × 4.36 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.16 mm7.21 mm1.37 ctE / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG681531173
Side View
Table 59.0%Crown 34.2°Girdle: MediumPavilion 40.9°Culet: NoneDepth 60.6%

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: Oct 29
Current: $1,250 SGD|Low: $214 SGD|High: $1,705 SGD|Avg: $708 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 30, 2026
Retailer 8$214 SGD
Retailer 4$265 SGD
Retailer 12$312 SGD
Retailer 9$458 SGD
Retailer 7$471 SGD
Retailer 13$478 SGD
Retailer 2$519 SGD
Retailer 11$586 SGD
Retailer 10$593 SGD
Retailer 14$654 SGD
Retailer 3$855 SGD
Retailer 5$1,207 SGD
MOH London$1,250 SGD
Retailer 6$1,705 SGD

4 data points across 14 retailers

11 retailers$214 SGD to $1,250 SGD

A
Cheapest Retailer
-
$214 SGD
$167 USD
A
Retailer 2
-
$265 SGD
$207 USD
View
A
Retailer 3
-
$312 SGD
HK$1,900 HKD
View
A
Retailer 4
-
$458 SGD
€340 EUR
View
A
Retailer 5
-
$471 SGD
£289 GBP
View
B+
Retailer 6
-
$478 SGD
$373 USD
View
A
Retailer 7
-
$519 SGD
£319 GBP
View
B+
Retailer 8
-
$586 SGD
$457 USD
View
B+
Retailer 9
-
$593 SGD
$463 USD
View
B+
Retailer 10
-
$855 SGD
$667 USD
View
Most Expensive
B
MOH London
LG681531173 · Oct 29
$1,250 SGD
£768 GBP
View
10 more retailers have this diamond
Prices start from $214 SGDSave up to $1,036 SGD

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
$214 SGD