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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 $238 AUD
$167 USD
As of October 29, 2026
Save $1,151 AUD (83%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,388 AUD 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 $238 to $1,388, a $1,151 spread on the same certified stone. MOH London lists it at $1,388. 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

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $1,388 AUD|Low: $238 AUD|High: $1,893 AUD|Avg: $786 AUD
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 7$238 AUD
Retailer 4$295 AUD
Retailer 12$346 AUD
Retailer 8$508 AUD
Retailer 2$523 AUD
Retailer 13$531 AUD
Retailer 9$578 AUD
Retailer 11$650 AUD
Retailer 10$659 AUD
Retailer 14$726 AUD
Retailer 3$949 AUD
Retailer 5$1,341 AUD
MOH London$1,388 AUD
Retailer 6$1,893 AUD

4 data points across 14 retailers

11 retailers$238 AUD to $1,388 AUD

A
Cheapest Retailer
-
$238 AUD
$167 USD
A
Retailer 2
-
$295 AUD
$207 USD
View
A
Retailer 3
-
$346 AUD
HK$1,900 HKD
View
A
Retailer 4
-
$508 AUD
€340 EUR
View
A
Retailer 5
-
$523 AUD
£289 GBP
View
B+
Retailer 6
-
$531 AUD
$373 USD
View
A
Retailer 7
-
$578 AUD
£320 GBP
View
B+
Retailer 8
-
$650 AUD
$457 USD
View
B+
Retailer 9
-
$659 AUD
$463 USD
View
B+
Retailer 10
-
$949 AUD
$667 USD
View
Most Expensive
B
MOH London
LG681531173 · Oct 29
$1,388 AUD
£768 GBP
View
10 more retailers have this diamond
Prices start from $238 AUDSave up to $1,151 AUD

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
$238 AUD