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Round|Lab Grown|IGI

1.50ct G IF Round Lab Grown Diamond

ID • G/IF • IGI LG587321551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG587321551

Diamond specifications and retailer prices

From $868 AUD
$608 USD
As of November 1, 2026
Save $1,572 AUD (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $2,439 AUD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 1.5ct lab-grown round diamond

This 1.5ct 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 LG587321551 or 587321551. Listed at 6 retailers as of October 31, 2026, with prices from $868 to $2,439, a $1,572 spread on the same certified stone. Taylor and Hart lists it at $2,439. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
G
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG587321551
Dimensions7.46 × 7.42 × 4.45 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II Faint Blue
Top View
7.46 mm7.42 mm1.50 ctG / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG587321551
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 40.9°Culet: NoneDepth 59.9%

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: $966 AUD|Low: $792 AUD|High: $2,567 AUD|Avg: $1,384 AUD|-0.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 2, 2026
Retailer 6$792 AUD
Retailer 4$868 AUD
Retailer 2$939 AUD
Retailer 1$966 AUD
Retailer 3$1,210 AUD
Retailer 5$2,298 AUD
Taylor and Hart$2,439 AUD

36 data points across 7 retailers

6 retailers$868 AUD to $2,439 AUD

A
Cheapest Retailer
-
$868 AUD
$608 USD
A
Retailer 2
-
$939 AUD
£518 GBP
View
A
Retailer 3
-
$966 AUD
€645 EUR
View
B+
Retailer 4
-
$1,210 AUD
$848 USD
View
Retailer 5
-
$2,298 AUD
£1,268 GBP
View
Price last confirmed 12 days ago
Most Expensive
B
Taylor and Hart
1GEC8OM · Oct 31
$2,439 AUD
$1,710 USD
View
5 more retailers have this diamond
Prices start from $868 AUDSave up to $1,572 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
1.50ct Round
$868 AUD