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Round|Lab Grown|IGI

1.53ct D SI1 Round Lab Grown Diamond

EX • D/SI1 • IGI LG685556706

Shape and cutting style on the report: Round brilliant

Certificate IGI LG685556706

Diamond specifications and retailer prices

From $317 AUD
As of November 5, 2026
Save $1,256 AUD (80%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,573 AUD at MOH London · As of November 5, 2026
View at MOH London

About this 1.53ct lab-grown round diamond

This 1.53ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG685556706 or 685556706. Listed at 15 retailers as of November 5, 2026, with prices from $317 to $1,573, a $1,256 spread on the same certified stone. MOH London lists it at $1,573. 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

1.53
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG685556706
Dimensions7.47 × 7.44 × 4.49 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.47 mm7.44 mm1.53 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG685556706
Side View
Table 61.0%Crown 33.8°Girdle: MediumPavilion 41.3°Culet: NoneDepth 60.3%

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: $1,573 AUD|Low: $304 AUD|High: $1,595 AUD|Avg: $742 AUD|-1.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 6, 2026
Retailer 8$317 AUD
Retailer 9$393 AUD
Retailer 7$531 AUD
Retailer 2$609 AUD
Retailer 3$631 AUD
Retailer 4$723 AUD
Retailer 5$1,100 AUD
Retailer 6$1,269 AUD
MOH London$1,573 AUD

40 data points across 9 retailers

15 retailers$317 AUD to $1,573 AUD

A
Cheapest Retailer
-
$317 AUD
A
Retailer 2
-
$369 AUD
View
Retailer 3
-
$393 AUD
View
Price last confirmed 12 days ago
A
Retailer 4
-
$393 AUD
View
B+
Retailer 5
-
$531 AUD
View
A
Retailer 6
-
$609 AUD
View
A
Retailer 7
-
$631 AUD
View
A
Retailer 8
-
$651 AUD
View
A
Retailer 9
-
$723 AUD
View
B+
Retailer 10
-
$757 AUD
View
B
Retailer 11
-
$1,100 AUD
View
B
Retailer 12
-
$1,264 AUD
View
B
Retailer 13
-
$1,269 AUD
View
B
Retailer 14
-
$1,339 AUD
View
Most Expensive
B
MOH London
LG685556706 · Nov 5
$1,573 AUD
£867 GBP
View
14 more retailers have this diamond
Prices start from $317 AUDSave up to $1,256 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
1.53ct Round
$317 AUD