Radiant|Lab Grown|IGI

2.55ct D FL Radiant Lab Grown Diamond

ID • D/FL • IGI LG768629556

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

Certificate IGI LG768629556

Diamond specifications and retailer prices

From $2,176 USD
HK$17,000 HKD
As of October 30, 2026
Save $5,094 USD (70%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,801 USD at Blue Nile · As of October 22, 2026
View at Blue Nile

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 top-tier cut grade and certified by IGI LG768629556 or 768629556. Listed at 13 retailers as of October 30, 2026, with a 234% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

2.55
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle42.6°
Pavilion angle33.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG768629556
Dimensions10.03 × 6.80 × 4.40 mm
L/W Ratio1.47
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
10.03 mm6.80 mm2.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG768629556
Side View
Table 63.0%Crown 42.6°Girdle: MediumPavilion 33.3°Culet: NoneDepth 64.7%

Caratlytics Score

How it works →
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: Oct 30
Current: $8,801 USD|Low: $1,765 USD|High: $12,761 USD|Avg: $5,018 USD|-31.0%
Blue Nile
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
October 30, 2026
Retailer 14$1,765 USD
Retailer 12$2,087 USD
Retailer 6$2,176 USD
Retailer 7$2,466 USD
Retailer 5$2,600 USD
Retailer 10$2,760 USD
Retailer 13$4,204 USD
Retailer 8$4,394 USD
Retailer 4$4,488 USD
Retailer 11$4,944 USD
Retailer 9$5,690 USD
Retailer 3$6,091 USD
Retailer 2$7,270 USD
Blue Nile$8,801 USD

36 data points across 14 retailers

13 retailers$2,176 USD to $7,270 USD

Retailer 1
-
$1,765 USD
Price last confirmed 9 days ago
Retailer 2
-
$2,087 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$2,176 USD
HK$17,000 HKD
View
Retailer 4
-
$2,466 USD
£1,942 GBP
View
Price last confirmed 8 days ago
Retailer 5
-
$2,600 USD
View
Price last confirmed 12 days ago
Retailer 6
-
$4,204 USD
View
Price last confirmed 8 days ago
Retailer 7
-
$4,394 USD
ZAR 70,981 ZAR
View
Price last confirmed 11 days ago
Retailer 8
-
$4,488 USD
View
Price last confirmed 9 days ago
Retailer 9
-
$4,944 USD
£3,893 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
$5,690 USD
View
Price last confirmed 9 days ago
Retailer 11
-
$6,091 USD
View
Price last confirmed 9 days ago
B
Retailer 12
-
$7,270 USD
View
Most Expensive
Blue Nile
29314079 · Oct 22
$8,801 USD
View
Price last confirmed 8 days ago
12 more retailers have this diamond
Prices start from $2,176 USDSave up to $5,094 USD

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
$2,176 USD