Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG744515287

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

Certificate IGI LG744515287

Diamond specifications and retailer prices

From €266 EUR
$297 USD
As of October 30, 2026
Save €2,097 EUR (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: €2,999 EUR at Brilliant Earth · As of October 17, 2026
View at Brilliant Earth

About this 1.55ct lab-grown radiant diamond

This 1.55ct 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 LG744515287 or 744515287. Listed at 32 retailers as of October 30, 2026, with a 789% 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

1.55
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.3°
Pavilion angle33.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG744515287
Dimensions5.70 × 5.70 × 3.76 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
5.70 mm5.70 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG744515287
Side View
Table 63.0%Crown 42.3°Girdle: Slightly ThickPavilion 33.9°Culet: NoneDepth 66.0%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: €2,999 EUR|Low: €266 EUR|High: €2,999 EUR|Avg: €1,041 EUR
Brilliant Earth
Retailer 2
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Retailer 25
November 1, 2026
Retailer 8€266 EUR
Retailer 11€319 EUR
Retailer 18€328 EUR
Retailer 25€387 EUR
Retailer 3€470 EUR
Retailer 23€481 EUR
Retailer 9€512 EUR
Retailer 12€564 EUR
Retailer 19€590 EUR
Retailer 21€626 EUR
Retailer 13€652 EUR
Retailer 10€740 EUR
Retailer 14€824 EUR
Retailer 22€847 EUR
Retailer 4€1,014 EUR
Retailer 17€1,245 EUR
Retailer 5€1,268 EUR
Retailer 15€1,315 EUR
Retailer 7€1,343 EUR
Retailer 16€1,400 EUR
Retailer 2€1,460 EUR
Retailer 20€1,498 EUR
Retailer 24€2,197 EUR
Retailer 6€2,363 EUR
Brilliant Earth€2,999 EUR

36 data points across 25 retailers

32 retailers€266 EUR to €2,363 EUR

A
Cheapest Retailer
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€266 EUR
$297 USD
Retailer 2
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€266 EUR
$297 USD
View
Price last confirmed 24 days ago
Retailer 3
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€283 EUR
$316 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€319 EUR
$356 USD
View
Final sale: no returns
Retailer 5
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€328 EUR
$367 USD
View
Price last confirmed 35 days ago
Retailer 6
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€330 EUR
$369 USD
View
Price last confirmed 29 days ago
Retailer 7
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€346 EUR
$387 USD
View
Price last confirmed 34 days ago
Retailer 8
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€387 EUR
£341 GBP
View
Price last confirmed 15 days ago
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Retailer 9
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€470 EUR
$525 USD
View
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Retailer 10
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€481 EUR
HK$4,200 HKD
View
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Retailer 11
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€512 EUR
$572 USD
View
A
Retailer 12
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€564 EUR
$630 USD
View
A
Retailer 13
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€590 EUR
View
A
Retailer 14
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€626 EUR
ZAR 11,299 ZAR
View
Retailer 15
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€644 EUR
£567 GBP
View
Price last confirmed 17 days ago
A
Retailer 16
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€652 EUR
£573 GBP
View
A
Retailer 17
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€740 EUR
$827 USD
View
A
Retailer 18
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€824 EUR
$921 USD
View
A
Retailer 19
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€847 EUR
A$1,456 AUD
View
B+
Retailer 20
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€1,014 EUR
$1,133 USD
View
Retailer 21
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€1,171 EUR
$1,308 USD
View
Price last confirmed 22 days ago
B+
Retailer 22
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€1,171 EUR
$1,308 USD
View
Retailer 23
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€1,245 EUR
$1,391 USD
View
Price last confirmed 32 days ago
B+
Retailer 24
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€1,268 EUR
$1,417 USD
View
B+
Retailer 25
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€1,315 EUR
$1,469 USD
View
B+
Retailer 26
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€1,343 EUR
$1,500 USD
View
B+
Retailer 27
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€1,400 EUR
SGD 2,114 SGD
View
B+
Retailer 28
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€1,460 EUR
£1,284 GBP
View
B+
Retailer 29
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€1,498 EUR
A$2,574 AUD
View
B
Retailer 30
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€2,197 EUR
$2,455 USD
View
B
Retailer 31
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€2,363 EUR
$2,640 USD
View
Most Expensive
Brilliant Earth
17456976Y · Oct 17
€2,999 EUR
$3,350 USD
View
Price last confirmed 15 days ago
31 more retailers have this diamond
Prices start from €266 EURSave up to €2,097 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
1.55ct Radiant
€266 EUR