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Radiant|Lab Grown|IGI

2.55ct D FL Radiant Lab Grown Diamond

GD • D/FL • IGI LG818684455

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

Certificate IGI LG818684455

Diamond specifications and retailer prices

From €1,879 EUR
HK$16,400 HKD
As of November 1, 2026
Save €5,747 EUR (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €7,626 EUR at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 2.55ct lab-grown radiant diamond

This 2.55ct lab-grown radiant sits in the two to three carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a standard cut grade and certified by IGI LG818684455 or 818684455. Listed at 11 retailers as of October 31, 2026, with prices from €1,879 to €7,626, a €5,747 spread on the same certified stone. Brilliant Earth lists it at €7,626. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

2.55
Carat
D
Color
FL
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle40.8°
Pavilion angle33.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818684455
Dimensions9.60 × 6.92 × 4.50 mm
L/W Ratio1.39
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
9.60 mm6.92 mm2.55 ctD / FL
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818684455
Side View
Table 62.0%Crown 40.8°Girdle: Slightly ThickPavilion 33.5°Culet: NoneDepth 65.0%

Caratlytics Score

How it works →
A
Excellent
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 1
Current: €7,626 EUR|Low: €1,879 EUR|High: €8,664 EUR|Avg: €4,401 EUR|-12.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 10€1,879 EUR
Retailer 4€2,176 EUR
Retailer 9€2,327 EUR
Retailer 6€2,473 EUR
Retailer 5€2,478 EUR
Retailer 8€4,017 EUR
Retailer 2€4,402 EUR
Retailer 3€5,277 EUR
Retailer 7€5,421 EUR
Retailer 11€5,933 EUR
Brilliant Earth€7,626 EUR

32 data points across 11 retailers

11 retailers€1,879 EUR to €7,626 EUR

A
Cheapest Retailer
-
€1,879 EUR
HK$16,400 HKD
B+
Retailer 2
-
€2,176 EUR
£1,914 GBP
View
B+
Retailer 3
-
€2,327 EUR
$2,600 USD
View
B+
Retailer 4
-
€2,473 EUR
$2,763 USD
View
B+
Retailer 5
-
€2,478 EUR
View
B
Retailer 6
-
€4,017 EUR
$4,488 USD
View
B
Retailer 7
-
€4,402 EUR
£3,872 GBP
View
Retailer 8
-
€5,277 EUR
$5,895 USD
View
Price last confirmed 34 days ago
B
Retailer 9
-
€5,421 EUR
$6,056 USD
View
B
Retailer 10
-
€5,933 EUR
$6,628 USD
View
Most Expensive
B
Brilliant Earth
21582521A · Oct 31
€7,626 EUR
$8,520 USD
View
10 more retailers have this diamond
Prices start from €1,879 EURSave up to €5,747 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
2.55ct Radiant
€1,879 EUR