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Radiant|Lab Grown|IGI

1.50ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG754509085

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

Certificate IGI LG754509085

Diamond specifications and retailer prices

From €258 EUR
$289 USD
As of November 2, 2026
Save €2,248 EUR (90%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: €2,505 EUR at Brilliant Earth · As of October 31, 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 LG754509085 or 754509085. Listed at 32 retailers as of October 31, 2026, with prices from €258 to €2,505, a €2,248 spread on the same certified stone. Brilliant Earth lists it at €2,505. 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
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.5°
Pavilion angle30.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754509085
Dimensions5.67 × 5.67 × 3.64 mm
L/W Ratio1.00
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
5.67 mm5.67 mm1.50 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754509085
Side View
Table 58.0%Crown 41.5°Girdle: Slightly ThickPavilion 30.9°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 2
Current: €2,505 EUR|Low: €258 EUR|High: €3,852 EUR|Avg: €1,009 EUR|-35.0%
Brilliant Earth
Retailer 2
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Retailer 25
November 2, 2026
Retailer 6€258 EUR
Retailer 10€307 EUR
Retailer 18€317 EUR
Retailer 23€374 EUR
Retailer 25€455 EUR
Retailer 14€468 EUR
Retailer 8€495 EUR
Retailer 11€551 EUR
Retailer 20€573 EUR
Retailer 13€607 EUR
Retailer 2€628 EUR
Retailer 9€694 EUR
Retailer 12€794 EUR
Retailer 21€821 EUR
Retailer 24€980 EUR
Retailer 17€1,204 EUR
Retailer 3€1,227 EUR
Retailer 15€1,277 EUR
Retailer 5€1,313 EUR
Retailer 16€1,364 EUR
Retailer 19€1,411 EUR
Retailer 7€1,460 EUR
Retailer 22€2,189 EUR
Retailer 4€2,282 EUR
Brilliant Earth€2,505 EUR

39 data points across 25 retailers

32 retailers€258 EUR to €2,505 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
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€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
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€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
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€334 EUR
$375 USD
View
Price last confirmed 34 days ago
Retailer 8
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€374 EUR
£331 GBP
View
Price last confirmed 16 days ago
A
Retailer 9
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€455 EUR
$510 USD
View
A
Retailer 10
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€468 EUR
HK$4,100 HKD
View
A
Retailer 11
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€495 EUR
$555 USD
View
A
Retailer 12
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€551 EUR
$618 USD
View
A
Retailer 13
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€573 EUR
View
A
Retailer 14
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€607 EUR
ZAR 11,004 ZAR
View
A
Retailer 15
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€628 EUR
£555 GBP
View
A
Retailer 16
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€694 EUR
$778 USD
View
A
Retailer 17
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€794 EUR
$891 USD
View
A
Retailer 18
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€821 EUR
A$1,416 AUD
View
B+
Retailer 19
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€980 EUR
$1,099 USD
View
B+
Retailer 20
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€1,132 EUR
$1,270 USD
View
Retailer 21
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€1,132 EUR
$1,270 USD
View
Price last confirmed 23 days ago
Retailer 22
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€1,204 EUR
$1,350 USD
View
Price last confirmed 32 days ago
B+
Retailer 23
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€1,227 EUR
$1,376 USD
View
B+
Retailer 24
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€1,277 EUR
$1,432 USD
View
B+
Retailer 25
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€1,313 EUR
$1,473 USD
View
B+
Retailer 26
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€1,364 EUR
SGD 2,067 SGD
View
B+
Retailer 27
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€1,411 EUR
£1,246 GBP
View
Retailer 28
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€1,460 EUR
A$2,519 AUD
View
Price last confirmed 25 days ago
B
Retailer 29
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€2,189 EUR
$2,455 USD
View
B
Retailer 30
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€2,282 EUR
$2,560 USD
View
B
Retailer 31
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€2,328 EUR
$2,611 USD
View
Most Expensive
B
Brilliant Earth
18652861Y · Oct 31
€2,505 EUR
$2,810 USD
View
31 more retailers have this diamond
Prices start from €258 EURSave up to €2,248 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