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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 HK$16,470 HKD
As of November 1, 2026
Save HK$50,376 HKD (75%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: HK$66,845 HKD 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 HK$16,470 to HK$66,845, a HK$50,376 spread on the same certified stone. Brilliant Earth lists it at HK$66,845. 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
Colour
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: HK$66,845 HKD|Low: HK$16,470 HKD|High: HK$75,946 HKD|Avg: HK$38,572 HKD|-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 10HK$16,470 HKD
Retailer 4HK$19,076 HKD
Retailer 9HK$20,399 HKD
Retailer 6HK$21,678 HKD
Retailer 5HK$21,724 HKD
Retailer 8HK$35,212 HKD
Retailer 2HK$38,581 HKD
Retailer 3HK$46,250 HKD
Retailer 7HK$47,516 HKD
Retailer 11HK$52,001 HKD
Brilliant EarthHK$66,845 HKD

32 data points across 11 retailers

11 retailersHK$16,470 HKD to HK$66,845 HKD

A
Cheapest Retailer
-
HK$16,470 HKD
B+
Retailer 2
-
HK$19,076 HKD
£1,914 GBP
View
B+
Retailer 3
-
HK$20,399 HKD
$2,600 USD
View
B+
Retailer 4
-
HK$21,678 HKD
$2,763 USD
View
B+
Retailer 5
-
HK$21,724 HKD
€2,637 EUR
View
B
Retailer 6
-
HK$35,212 HKD
$4,488 USD
View
B
Retailer 7
-
HK$38,581 HKD
£3,872 GBP
View
Retailer 8
-
HK$46,250 HKD
$5,895 USD
View
Price last confirmed 34 days ago
B
Retailer 9
-
HK$47,516 HKD
$6,056 USD
View
B
Retailer 10
-
HK$52,001 HKD
$6,628 USD
View
Most Expensive
B
Brilliant Earth
21582521A · Oct 31
HK$66,845 HKD
$8,520 USD
View
10 more retailers have this diamond
Prices start from HK$16,470 HKDSave up to HK$50,376 HKD

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
HK$16,470 HKD