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Radiant|Lab Grown|IGI

1.55ct F IF Radiant Lab Grown Diamond

EX • F/IF • IGI LG818630033

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

Certificate IGI LG818630033

Diamond specifications and retailer prices

From €210 EUR
As of November 6, 2026
Save €2,030 EUR (91%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €2,239 EUR at Brilliant Earth · As of November 6, 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 F colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818630033 or 818630033. Listed at 20 retailers as of November 6, 2026, with prices from €210 to €2,239, a €2,030 spread on the same certified stone. Brilliant Earth lists it at €2,239. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
F
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle51.9°
Pavilion angle37.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818630033
Dimensions8.29 × 5.83 × 3.84 mm
L/W Ratio1.42
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
8.29 mm5.83 mm1.55 ctF / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818630033
Side View
Table 62.0%Crown 51.9°Girdle: MediumPavilion 37.8°Culet: NoneDepth 65.9%

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: Nov 6
Current: €542 EUR|Low: €210 EUR|High: €2,015 EUR|Avg: €844 EUR|-11.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
November 7, 2026
Retailer 18€210 EUR
Retailer 7€235 EUR
Retailer 17€243 EUR
Retailer 19€260 EUR
Retailer 9€440 EUR
Retailer 12€485 EUR
Retailer 1€542 EUR
Retailer 14€671 EUR
Retailer 15€715 EUR
Retailer 6€725 EUR
Retailer 2€922 EUR
Retailer 4€1,057 EUR
Retailer 8€1,073 EUR
Retailer 10€1,109 EUR
Retailer 5€1,119 EUR
Retailer 13€1,146 EUR
Retailer 11€1,165 EUR
Retailer 16€1,603 EUR
Retailer 3€2,015 EUR

46 data points across 19 retailers

20 retailers€210 EUR to €2,239 EUR

A
Cheapest Retailer
-
€210 EUR
A
Retailer 2
-
€235 EUR
View
Final sale: no returns
A
Retailer 3
-
€243 EUR
View
A
Retailer 4
-
€260 EUR
View
A
Retailer 5
-
€440 EUR
View
A
Retailer 6
-
€485 EUR
View
A
Retailer 7
-
€542 EUR
View
A
Retailer 8
-
€671 EUR
View
B+
Retailer 9
-
€715 EUR
View
A
Retailer 10
-
€725 EUR
View
B+
Retailer 11
-
€922 EUR
View
B+
Retailer 12
-
€1,057 EUR
View
B+
Retailer 13
-
€1,073 EUR
View
B+
Retailer 14
-
€1,109 EUR
View
B+
Retailer 15
-
€1,119 EUR
View
B+
Retailer 16
-
€1,146 EUR
View
Retailer 17
-
€1,165 EUR
View
Price last confirmed 30 days ago
Retailer 18
-
€1,603 EUR
View
Price last confirmed 20 days ago
B
Retailer 19
-
€2,015 EUR
View
Most Expensive
B
Brilliant Earth
22138650Y · Nov 6
€2,239 EUR
$2,500 USD
View
19 more retailers have this diamond
Prices start from €210 EURSave up to €2,030 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
€210 EUR