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Round|Lab Grown|IGI

1.53ct G SI1 Round Lab Grown Diamond

EX • G/SI1 • IGI LG781631509

Shape and cutting style on the report: Round brilliant

Certificate IGI LG781631509

Diamond specifications and retailer prices

From $270 AUD
$190 USD
As of October 29, 2026
Save $1,313 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,584 AUD at MOH London · As of October 29, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG781631509 or 781631509. Listed at 19 retailers as of October 29, 2026, with prices from $270 to $1,584, a $1,313 spread on the same certified stone. MOH London lists it at $1,584. 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.9°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG781631509
Dimensions7.50 × 7.47 × 4.45 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
7.50 mm7.47 mm1.53 ctG / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG781631509
Side View
Table 62.0%Crown 32.9°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 59.5%

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: $1,584 AUD|Low: $266 AUD|High: $1,624 AUD|Avg: $774 AUD|-1.2%
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
Retailer 15
Retailer 16
October 31, 2026
Retailer 4$270 AUD
Retailer 14$300 AUD
Retailer 13$313 AUD
Retailer 2$335 AUD
Retailer 5$337 AUD
Retailer 15$588 AUD
Retailer 9$607 AUD
Retailer 6$658 AUD
Retailer 12$810 AUD
Retailer 11$860 AUD
Retailer 7$1,025 AUD
Retailer 10$1,076 AUD
Retailer 16$1,092 AUD
Retailer 3$1,153 AUD
Retailer 8$1,239 AUD
MOH London$1,584 AUD

33 data points across 16 retailers

19 retailers$270 AUD to $1,584 AUD

A
Cheapest Retailer
-
$270 AUD
$190 USD
Retailer 2
-
$270 AUD
$190 USD
View
Price last confirmed 43 days ago
A
Retailer 3
-
$300 AUD
$211 USD
View
Final sale: no returns
A
Retailer 4
-
$313 AUD
$220 USD
View
Retailer 5
-
$330 AUD
$232 USD
View
Price last confirmed 42 days ago
A
Retailer 6
-
$335 AUD
$235 USD
View
A
Retailer 7
-
$337 AUD
$237 USD
View
B+
Retailer 8
-
$588 AUD
$413 USD
View
A
Retailer 9
-
$607 AUD
£336 GBP
View
A
Retailer 10
-
$658 AUD
$462 USD
View
B+
Retailer 11
-
$810 AUD
$569 USD
View
B+
Retailer 12
-
$860 AUD
$604 USD
View
Retailer 13
-
$1,025 AUD
$720 USD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
$1,076 AUD
$756 USD
View
Retailer 15
-
$1,076 AUD
$756 USD
View
Price last confirmed 40 days ago
B+
Retailer 16
-
$1,092 AUD
SGD 1,037 SGD
View
B+
Retailer 17
-
$1,153 AUD
$810 USD
View
B
Retailer 18
-
$1,239 AUD
$870 USD
View
Most Expensive
B
MOH London
LG781631509 · Oct 29
$1,584 AUD
£876 GBP
View
18 more retailers have this diamond
Prices start from $270 AUDSave up to $1,313 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
$270 AUD