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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG792697762

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792697762

Diamond specifications and retailer prices

From $275 AUD
$193 USD
As of November 1, 2026
Save $1,320 AUD (83%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,595 AUD at MOH London · As of November 1, 2026
View at MOH London

About this 1.51ct lab-grown round diamond

This 1.51ct 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 LG792697762 or 792697762. Listed at 16 retailers as of November 1, 2026, with prices from $275 to $1,595, a $1,320 spread on the same certified stone. MOH London lists it at $1,595. 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

1.51
Carat
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792697762
Dimensions7.43 × 7.40 × 4.48 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.43 mm7.40 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792697762
Side View
Table 58.0%Crown 34.4°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.5%

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 1
Current: $1,595 AUD|Low: $269 AUD|High: $1,643 AUD|Avg: $770 AUD|-1.7%
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
November 2, 2026
Retailer 5$275 AUD
Retailer 15$307 AUD
Retailer 14$319 AUD
Retailer 9$342 AUD
Retailer 6$343 AUD
Retailer 3$596 AUD
Retailer 2$621 AUD
Retailer 12$645 AUD
Retailer 13$814 AUD
Retailer 11$883 AUD
Retailer 7$1,018 AUD
Retailer 10$1,098 AUD
Retailer 4$1,109 AUD
Retailer 16$1,173 AUD
Retailer 8$1,224 AUD
MOH London$1,595 AUD

36 data points across 16 retailers

16 retailers$275 AUD to $1,595 AUD

A
Cheapest Retailer
-
$275 AUD
$193 USD
A
Retailer 2
-
$307 AUD
$216 USD
View
Final sale: no returns
A
Retailer 3
-
$319 AUD
$224 USD
View
A
Retailer 4
-
$342 AUD
$240 USD
View
Retailer 5
-
$343 AUD
$241 USD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
$596 AUD
$419 USD
View
A
Retailer 7
-
$621 AUD
£343 GBP
View
A
Retailer 8
-
$645 AUD
$453 USD
View
B+
Retailer 9
-
$814 AUD
$572 USD
View
B+
Retailer 10
-
$883 AUD
$620 USD
View
Retailer 11
-
$1,018 AUD
$715 USD
View
Price last confirmed 11 days ago
B
Retailer 12
-
$1,098 AUD
$771 USD
View
B+
Retailer 13
-
$1,109 AUD
SGD 1,053 SGD
View
B+
Retailer 14
-
$1,173 AUD
$824 USD
View
Retailer 15
-
$1,224 AUD
$860 USD
View
Price last confirmed 16 days ago
Most Expensive
B
MOH London
LG792697762 · Nov 1
$1,595 AUD
£882 GBP
View
15 more retailers have this diamond
Prices start from $275 AUDSave up to $1,320 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
1.51ct Round
$275 AUD