Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG729567702

Shape and cutting style on the report: Cut cornered rectangular modified brilliant

Certificate IGI LG729567702

Diamond specifications and retailer prices

From €258 EUR
$289 USD
As of October 30, 2026
Save €2,025 EUR (89%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: €2,889 EUR at Brilliant Earth · As of October 22, 2026
View at Brilliant Earth

About this 1.5ct lab-grown radiant diamond

This 1.5ct lab-grown radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729567702 or 729567702. Listed at 30 retailers as of October 30, 2026, with a 786% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.50
Carat
D
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle32.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729567702
Dimensions8.48 × 5.69 × 3.56 mm
L/W Ratio1.49
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
Top View
8.48 mm5.69 mm1.50 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729567702
Side View
Table 63.0%Crown 42.6°Girdle: MediumPavilion 32.4°Culet: NoneDepth 62.6%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €2,889 EUR|Low: €258 EUR|High: €2,889 EUR|Avg: €1,028 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
Retailer 6
Retailer 7
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Retailer 11
Retailer 12
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
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Retailer 21
Retailer 22
November 2, 2026
Retailer 3€258 EUR
Retailer 18€307 EUR
Retailer 22€455 EUR
Retailer 12€468 EUR
Retailer 4€495 EUR
Retailer 10€551 EUR
Retailer 16€573 EUR
Retailer 13€607 EUR
Retailer 2€628 EUR
Retailer 6€694 EUR
Retailer 11€794 EUR
Retailer 17€821 EUR
Retailer 21€980 EUR
Retailer 8€1,227 EUR
Retailer 14€1,277 EUR
Retailer 7€1,313 EUR
Retailer 15€1,364 EUR
Retailer 20€1,419 EUR
Retailer 5€1,466 EUR
Retailer 19€2,189 EUR
Retailer 9€2,282 EUR
Brilliant Earth€2,889 EUR

39 data points across 22 retailers

30 retailers€258 EUR to €2,282 EUR

A
Cheapest Retailer
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€258 EUR
$289 USD
Retailer 2
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€258 EUR
$289 USD
View
Price last confirmed 25 days ago
Retailer 3
-
€274 EUR
$307 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€307 EUR
$344 USD
View
Final sale: no returns
Retailer 5
-
€317 EUR
$356 USD
View
Price last confirmed 36 days ago
Retailer 6
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€319 EUR
$358 USD
View
Price last confirmed 30 days ago
Retailer 7
-
€334 EUR
$375 USD
View
Price last confirmed 34 days ago
A
Retailer 8
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€455 EUR
$510 USD
View
A
Retailer 9
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€468 EUR
HK$4,100 HKD
View
A
Retailer 10
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€495 EUR
$555 USD
View
A
Retailer 11
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€551 EUR
$618 USD
View
A
Retailer 12
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€573 EUR
View
A
Retailer 13
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€607 EUR
ZAR 11,004 ZAR
View
A
Retailer 14
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€628 EUR
£555 GBP
View
A
Retailer 15
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€694 EUR
$778 USD
View
A
Retailer 16
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€794 EUR
$891 USD
View
A
Retailer 17
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€821 EUR
A$1,416 AUD
View
B+
Retailer 18
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€980 EUR
$1,099 USD
View
B+
Retailer 19
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€1,132 EUR
$1,270 USD
View
Retailer 20
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€1,132 EUR
$1,270 USD
View
Price last confirmed 23 days ago
Retailer 21
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€1,204 EUR
$1,350 USD
View
Price last confirmed 32 days ago
B+
Retailer 22
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€1,227 EUR
$1,376 USD
View
B+
Retailer 23
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€1,277 EUR
$1,432 USD
View
B+
Retailer 24
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€1,313 EUR
$1,473 USD
View
B+
Retailer 25
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€1,364 EUR
SGD 2,067 SGD
View
Retailer 26
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€1,419 EUR
£1,253 GBP
View
Price last confirmed 12 days ago
Retailer 27
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€1,466 EUR
A$2,530 AUD
View
Price last confirmed 28 days ago
B
Retailer 28
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€2,189 EUR
$2,455 USD
View
B
Retailer 29
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€2,282 EUR
$2,560 USD
View
Most Expensive
Brilliant Earth
16223215Y · Oct 22
€2,889 EUR
$3,240 USD
View
Price last confirmed 10 days ago
29 more retailers have this diamond
Prices start from €258 EURSave up to €2,025 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 Radiant
€258 EUR