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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 €280 EUR
As of November 4, 2026
Save €2,525 EUR (90%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: €2,805 EUR at Diamond Quarter · As of November 2, 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 November 2, 2026, with prices from €280 to €2,805, a €2,525 spread on the same certified stone. Diamond Quarter lists it at €2,805. 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
Colour
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

How it works →
A+
Exceptional
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €612 EUR|Low: €280 EUR|High: €2,312 EUR|Avg: €845 EUR
Retailer 1
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Retailer 21
November 5, 2026
Retailer 4€280 EUR
Retailer 17€313 EUR
Retailer 21€324 EUR
Retailer 3€347 EUR
Retailer 13€398 EUR
Retailer 15€484 EUR
Retailer 7€488 EUR
Retailer 18€564 EUR
Retailer 10€577 EUR
Retailer 16€597 EUR
Retailer 1€612 EUR
Retailer 11€780 EUR
Retailer 12€814 EUR
Retailer 8€943 EUR
Retailer 6€1,017 EUR
Retailer 5€1,115 EUR
Retailer 14€1,155 EUR
Retailer 9€1,385 EUR
Retailer 20€1,391 EUR
Retailer 19€1,472 EUR
Retailer 2€2,303 EUR

35 data points across 21 retailers

25 retailers€280 EUR to €2,805 EUR

A+
Cheapest Retailer
-
€280 EUR
A
Retailer 2
-
€313 EUR
View
Final sale: no returns
A
Retailer 3
-
€324 EUR
View
A
Retailer 4
-
€347 EUR
View
A
Retailer 5
-
€398 EUR
View
A
Retailer 6
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€484 EUR
View
A
Retailer 7
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€488 EUR
View
A
Retailer 8
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€564 EUR
View
A
Retailer 9
-
€577 EUR
View
A
Retailer 10
-
€597 EUR
View
A
Retailer 11
-
€612 EUR
View
A
Retailer 12
-
€780 EUR
View
A
Retailer 13
-
€814 EUR
View
B+
Retailer 14
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€943 EUR
View
B+
Retailer 15
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€1,017 EUR
View
B+
Retailer 16
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€1,115 EUR
View
B+
Retailer 17
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€1,153 EUR
View
B+
Retailer 18
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€1,155 EUR
View
B+
Retailer 19
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€1,161 EUR
View
B+
Retailer 20
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€1,385 EUR
View
Retailer 21
-
€1,391 EUR
View
Price last confirmed 10 days ago
B+
Retailer 22
-
€1,472 EUR
View
Retailer 23
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€2,303 EUR
View
Price last confirmed 8 days ago
Retailer 24
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€2,317 EUR
View
Price last confirmed 38 days ago
Most Expensive
B
Diamond Quarter
1.55IFDLG4480A4N · Nov 2
€2,805 EUR
£2,488 GBP
View
24 more retailers have this diamond
Prices start from €280 EURSave up to €2,525 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
€280 EUR