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Round|Lab Grown|IGI

1.51ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG823679340

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823679340

Diamond specifications and retailer prices

From $548 AUD
HK$3,000 HKD
As of November 1, 2026
Save $2,334 AUD (81%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,882 AUD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG823679340 or 823679340. Listed at 24 retailers as of November 1, 2026, with prices from $548 to $2,882, a $2,334 spread on the same certified stone. Brilliant Earth lists it at $2,882. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823679340
Dimensions7.32 × 7.34 × 4.50 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.32 mm7.34 mm1.51 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823679340
Side View
Table 60.0%Crown 33.4°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 61.4%

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: $2,882 AUD|Low: $642 AUD|High: $3,382 AUD|Avg: $1,479 AUD|-12.2%
Brilliant Earth
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
November 2, 2026
Retailer 11$642 AUD
Retailer 14$642 AUD
Retailer 2$770 AUD
Retailer 9$787 AUD
Retailer 8$861 AUD
Retailer 13$1,062 AUD
Retailer 12$1,142 AUD
Retailer 15$1,203 AUD
Retailer 5$1,538 AUD
Retailer 3$1,560 AUD
Retailer 7$1,745 AUD
Retailer 10$1,827 AUD
Retailer 4$2,018 AUD
Retailer 6$2,668 AUD
Brilliant Earth$2,882 AUD

35 data points across 15 retailers

24 retailers$548 AUD to $2,882 AUD

Retailer 1
-
$371 AUD
$260 USD
Price last confirmed 15 days ago
Retailer 2
-
$441 AUD
$309 USD
View
Price last confirmed 20 days ago
Retailer 3
-
$471 AUD
$330 USD
View
Price last confirmed 31 days ago
Retailer 4
-
$471 AUD
$330 USD
View
Price last confirmed 17 days ago
A
Retailer 5
-
$548 AUD
HK$3,000 HKD
View
B+
Retailer 6
-
$642 AUD
$450 USD
View
A
Retailer 7
-
$642 AUD
$450 USD
View
A
Retailer 8
-
$770 AUD
€514 EUR
View
A
Retailer 9
-
$787 AUD
ZAR 8,909 ZAR
View
A
Retailer 10
-
$861 AUD
£475 GBP
View
A
Retailer 11
-
$1,062 AUD
View
A
Retailer 12
-
$1,142 AUD
$800 USD
View
B+
Retailer 13
-
$1,203 AUD
$843 USD
View
Retailer 14
-
$1,481 AUD
$1,038 USD
View
Price last confirmed 15 days ago
B+
Retailer 15
-
$1,538 AUD
$1,078 USD
View
B+
Retailer 16
-
$1,560 AUD
SGD 1,477 SGD
View
B+
Retailer 17
-
$1,745 AUD
$1,223 USD
View
B+
Retailer 18
-
$1,827 AUD
£1,008 GBP
View
B
Retailer 19
-
$2,018 AUD
$1,414 USD
View
Retailer 20
-
$2,661 AUD
$1,865 USD
View
Price last confirmed 12 days ago
Retailer 21
-
$2,668 AUD
$1,870 USD
View
Price last confirmed 12 days ago
Retailer 22
-
$2,675 AUD
$1,875 USD
View
Price last confirmed 12 days ago
Retailer 23
-
$2,695 AUD
$1,889 USD
View
Price last confirmed 54 days ago
Most Expensive
B
Brilliant Earth
21101265A · Nov 2
$2,882 AUD
$2,020 USD
View
23 more retailers have this diamond
Prices start from $548 AUDSave up to $2,334 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
$548 AUD