Radiant|Lab Grown|IGI

1.55ct D IF Radiant Lab Grown Diamond

ID • D/IF • IGI LG648445944

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

Certificate IGI LG648445944

Diamond specifications and retailer prices

From €282 EUR
$315 USD
As of October 30, 2026
Save €2,547 EUR (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €2,829 EUR at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

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 LG648445944 or 648445944. Listed at 25 retailers as of October 30, 2026, with prices from €282 to €2,829, a €2,547 spread on the same certified stone. Diamond Quarter lists it at €2,829. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.3°
Pavilion angle35°
OriginLab Grown
Grading LabIGI
CertificateIGI LG648445944
Dimensions8.41 × 5.77 × 3.85 mm
L/W Ratio1.46
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
8.41 mm5.77 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG648445944
Side View
Table 63.0%Crown 39.3°Girdle: MediumPavilion 35°Culet: NoneDepth 66.7%

Caratlytics Score

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A+
Exceptional
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: €316 EUR|Low: €270 EUR|High: €2,332 EUR|Avg: €875 EUR|-5.6%
Retailer 1
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Retailer 23
November 1, 2026
Retailer 4€282 EUR
Retailer 1€316 EUR
Retailer 23€327 EUR
Retailer 3€350 EUR
Retailer 13€401 EUR
Retailer 18€456 EUR
Retailer 7€492 EUR
Retailer 17€570 EUR
Retailer 10€582 EUR
Retailer 21€601 EUR
Retailer 12€623 EUR
Retailer 11€787 EUR
Retailer 20€815 EUR
Retailer 8€951 EUR
Retailer 6€1,026 EUR
Retailer 5€1,124 EUR
Retailer 16€1,163 EUR
Retailer 14€1,165 EUR
Retailer 15€1,171 EUR
Retailer 9€1,397 EUR
Retailer 22€1,403 EUR
Retailer 19€1,485 EUR
Retailer 2€2,323 EUR

32 data points across 23 retailers

25 retailers€282 EUR to €2,829 EUR

A+
Cheapest Retailer
-
€282 EUR
$315 USD
A
Retailer 2
-
€316 EUR
$353 USD
View
Final sale: no returns
A
Retailer 3
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€327 EUR
$365 USD
View
A
Retailer 4
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€350 EUR
$391 USD
View
A
Retailer 5
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€401 EUR
HK$3,500 HKD
View
A
Retailer 6
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€456 EUR
$510 USD
View
A
Retailer 7
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€492 EUR
$550 USD
View
A
Retailer 8
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€570 EUR
View
A
Retailer 9
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€582 EUR
$650 USD
View
A
Retailer 10
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€601 EUR
ZAR 10,844 ZAR
View
A
Retailer 11
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€623 EUR
£548 GBP
View
A
Retailer 12
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€787 EUR
$880 USD
View
A
Retailer 13
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€815 EUR
A$1,401 AUD
View
B+
Retailer 14
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€951 EUR
$1,062 USD
View
B+
Retailer 15
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€1,026 EUR
$1,146 USD
View
B+
Retailer 16
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€1,124 EUR
$1,256 USD
View
B+
Retailer 17
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€1,163 EUR
$1,299 USD
View
B+
Retailer 18
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€1,165 EUR
$1,302 USD
View
B+
Retailer 19
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€1,171 EUR
SGD 1,768 SGD
View
B+
Retailer 20
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€1,397 EUR
$1,561 USD
View
B+
Retailer 21
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€1,403 EUR
£1,234 GBP
View
B+
Retailer 22
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€1,485 EUR
A$2,552 AUD
View
B
Retailer 23
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€2,323 EUR
$2,595 USD
View
Retailer 24
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€2,336 EUR
$2,610 USD
View
Price last confirmed 34 days ago
Most Expensive
B
Diamond Quarter
1.55IFDLG4480A4N · Oct 31
€2,829 EUR
£2,488 GBP
View
24 more retailers have this diamond
Prices start from €282 EURSave up to €2,547 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
€282 EUR