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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 €544 EUR
$608 USD
As of October 30, 2026
Save €986 EUR (64%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €1,530 EUR 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 30, 2026, with prices from €544 to €1,530, a €986 spread on the same certified stone. Taylor and Hart lists it at €1,530. 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
Color
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: Oct 30
Current: €589 EUR|Low: €497 EUR|High: €1,610 EUR|Avg: €869 EUR|-2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Taylor and Hart
November 1, 2026
Retailer 6€497 EUR
Retailer 4€544 EUR
Retailer 1€589 EUR
Retailer 2€604 EUR
Retailer 3€759 EUR
Retailer 5€1,441 EUR
Taylor and Hart€1,530 EUR

35 data points across 7 retailers

6 retailers€544 EUR to €1,530 EUR

A
Cheapest Retailer
-
€544 EUR
$608 USD
A
Retailer 2
-
€589 EUR
£518 GBP
View
A
Retailer 3
-
€604 EUR
View
B+
Retailer 4
-
€759 EUR
$848 USD
View
Retailer 5
-
€1,441 EUR
£1,268 GBP
View
Price last confirmed 11 days ago
Most Expensive
B
Taylor and Hart
1GEC8OM · Oct 31
€1,530 EUR
$1,710 USD
View
5 more retailers have this diamond
Prices start from €544 EURSave up to €986 EUR

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
€544 EUR