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Round|Lab Grown|IGI

1.51ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG792616784

Shape and cutting style on the report: Round brilliant

Certificate IGI LG792616784

Diamond specifications and retailer prices

From $275 AUD
$193 USD
As of November 1, 2026
Save $1,323 AUD (83%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,598 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 LG792616784 or 792616784. Listed at 19 retailers as of November 1, 2026, with prices from $275 to $1,598, a $1,323 spread on the same certified stone. MOH London lists it at $1,598. 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 angle33.8°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG792616784
Dimensions7.34 × 7.29 × 4.55 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
7.34 mm7.29 mm1.51 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG792616784
Side View
Table 56.0%Crown 33.8°Girdle: MED-STKPavilion 40.9°Culet: NoneDepth 62.2%

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: Nov 1
Current: $1,598 AUD|Low: $270 AUD|High: $1,651 AUD|Avg: $777 AUD|-1.8%
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$308 AUD
Retailer 14$320 AUD
Retailer 10$342 AUD
Retailer 6$344 AUD
Retailer 16$598 AUD
Retailer 9$622 AUD
Retailer 12$646 AUD
Retailer 13$816 AUD
Retailer 2$896 AUD
Retailer 7$1,020 AUD
Retailer 11$1,100 AUD
Retailer 3$1,112 AUD
Retailer 4$1,176 AUD
Retailer 8$1,227 AUD
MOH London$1,598 AUD

37 data points across 16 retailers

19 retailers$275 AUD to $1,598 AUD

Retailer 1
-
$275 AUD
$193 USD
Price last confirmed 45 days ago
A
Retailer 2
-
$275 AUD
$193 USD
View
A
Retailer 3
-
$308 AUD
$216 USD
View
Final sale: no returns
A
Retailer 4
-
$320 AUD
$224 USD
View
Retailer 5
-
$335 AUD
$235 USD
View
Price last confirmed 44 days ago
A
Retailer 6
-
$342 AUD
$240 USD
View
Retailer 7
-
$344 AUD
$241 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$598 AUD
$419 USD
View
A
Retailer 9
-
$622 AUD
£343 GBP
View
A
Retailer 10
-
$646 AUD
$453 USD
View
B+
Retailer 11
-
$816 AUD
$572 USD
View
B+
Retailer 12
-
$896 AUD
$628 USD
View
Retailer 13
-
$1,020 AUD
$715 USD
View
Price last confirmed 12 days ago
Retailer 14
-
$1,093 AUD
$766 USD
View
Price last confirmed 42 days ago
B
Retailer 15
-
$1,100 AUD
$771 USD
View
B+
Retailer 16
-
$1,112 AUD
SGD 1,053 SGD
View
B+
Retailer 17
-
$1,176 AUD
$824 USD
View
B
Retailer 18
-
$1,227 AUD
$860 USD
View
Most Expensive
B
MOH London
LG792616784 · Nov 1
$1,598 AUD
£882 GBP
View
18 more retailers have this diamond
Prices start from $275 AUDSave up to $1,323 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