Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

EX • D/IF • IGI LG743593979

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

Certificate IGI LG743593979

Diamond specifications and retailer prices

From €265 EUR
$297 USD
As of October 30, 2026
Save €2,089 EUR (89%) vs most expensive(unlock to see where)
30 retailers carry this diamond
Most expensive: €2,987 EUR at Brilliant Earth · As of October 22, 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 LG743593979 or 743593979. Listed at 30 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 angle36.8°
Pavilion angle33°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743593979
Dimensions5.79 × 5.79 × 3.78 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
5.79 mm5.79 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743593979
Side View
Table 62.0%Crown 36.8°Girdle: MediumPavilion 33°Culet: NoneDepth 65.1%

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: €2,987 EUR|Low: €265 EUR|High: €2,987 EUR|Avg: €1,091 EUR
Brilliant Earth
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
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Retailer 11
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Retailer 21
Retailer 22
October 31, 2026
Retailer 5€265 EUR
Retailer 3€317 EUR
Retailer 22€468 EUR
Retailer 20€479 EUR
Retailer 6€510 EUR
Retailer 11€562 EUR
Retailer 2€588 EUR
Retailer 19€624 EUR
Retailer 13€649 EUR
Retailer 7€737 EUR
Retailer 12€821 EUR
Retailer 18€846 EUR
Retailer 4€1,010 EUR
Retailer 9€1,263 EUR
Retailer 14€1,310 EUR
Retailer 8€1,338 EUR
Retailer 15€1,395 EUR
Retailer 17€1,462 EUR
Retailer 16€1,492 EUR
Retailer 21€2,189 EUR
Retailer 10€2,354 EUR
Brilliant Earth€2,987 EUR

36 data points across 22 retailers

30 retailers€265 EUR to €2,354 EUR

A
Cheapest Retailer
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€265 EUR
$297 USD
Retailer 2
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€265 EUR
$297 USD
View
Price last confirmed 25 days ago
Retailer 3
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€282 EUR
$316 USD
View
Price last confirmed 33 days ago
A
Retailer 4
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€317 EUR
$356 USD
View
Final sale: no returns
Retailer 5
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€327 EUR
$367 USD
View
Price last confirmed 36 days ago
Retailer 6
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€329 EUR
$369 USD
View
Price last confirmed 30 days ago
Retailer 7
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€345 EUR
$387 USD
View
Price last confirmed 34 days ago
A
Retailer 8
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€468 EUR
$525 USD
View
A
Retailer 9
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€479 EUR
HK$4,200 HKD
View
A
Retailer 10
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€510 EUR
$572 USD
View
A
Retailer 11
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€562 EUR
$630 USD
View
A
Retailer 12
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€588 EUR
View
A
Retailer 13
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€624 EUR
ZAR 11,299 ZAR
View
A
Retailer 14
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€649 EUR
£573 GBP
View
A
Retailer 15
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€737 EUR
$827 USD
View
A
Retailer 16
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€821 EUR
$921 USD
View
A
Retailer 17
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€846 EUR
A$1,460 AUD
View
B+
Retailer 18
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€1,010 EUR
$1,133 USD
View
B+
Retailer 19
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€1,166 EUR
$1,308 USD
View
Retailer 20
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€1,166 EUR
$1,308 USD
View
Price last confirmed 23 days ago
Retailer 21
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€1,240 EUR
$1,391 USD
View
Price last confirmed 33 days ago
B+
Retailer 22
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€1,263 EUR
$1,417 USD
View
B+
Retailer 23
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€1,310 EUR
$1,469 USD
View
B+
Retailer 24
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€1,338 EUR
$1,500 USD
View
B+
Retailer 25
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€1,395 EUR
SGD 2,114 SGD
View
B+
Retailer 26
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€1,462 EUR
£1,291 GBP
View
B+
Retailer 27
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€1,492 EUR
A$2,574 AUD
View
B
Retailer 28
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€2,189 EUR
$2,455 USD
View
B
Retailer 29
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€2,354 EUR
$2,640 USD
View
Most Expensive
Brilliant Earth
17457421Y · Oct 22
€2,987 EUR
$3,350 USD
View
Price last confirmed 11 days ago
29 more retailers have this diamond
Prices start from €265 EURSave up to €2,089 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
€265 EUR