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Radiant|Lab Grown|IGI

2.57ct D FL Radiant Lab Grown Diamond

EX • D/FL

Diamond specifications and retailer prices

From HK$7,367 HKD
$939 USD
As of October 30, 2026
Save HK$42,696 HKD (85%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: HK$50,063 HKD at Blue Nile · As of October 29, 2026
View at Blue Nile

About this 2.57ct lab-grown radiant diamond

This 2.57ct 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. Listed at 5 retailers as of October 29, 2026, with prices from HK$7,367 to HK$50,063, a HK$42,696 spread on the same certified stone. Blue Nile lists it at HK$50,063. 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

2.57
Carat
D
Colour
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions9.37 × 6.81 × 4.71 mm
L/W Ratio1.38
Top View
9.37 mm6.81 mm2.57 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 65.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 69.2%

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: Oct 30
Current: HK$50,063 HKD|Low: HK$7,367 HKD|High: HK$81,548 HKD|Avg: HK$31,053 HKD|-11.6%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 28, 2026
Retailer 4HK$7,367 HKD
Retailer 3HK$8,018 HKD
Retailer 5HK$10,647 HKD
Retailer 2HK$17,684 HKD
Blue NileHK$50,063 HKD
Retailer 6HK$81,548 HKD

11 data points across 6 retailers

5 retailersHK$7,367 HKD to HK$50,063 HKD

A
Cheapest Retailer
-
HK$7,367 HKD
$939 USD
A
Retailer 2
-
HK$8,018 HKD
$1,022 USD
View
A
Retailer 3
-
HK$10,647 HKD
$1,357 USD
View
A
Retailer 4
-
HK$17,684 HKD
$2,254 USD
View
Most Expensive
B
Blue Nile
30353931 · Oct 29
HK$50,063 HKD
$6,381 USD
View
4 more retailers have this diamond
Prices start from HK$7,367 HKDSave up to HK$42,696 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
2.57ct Radiant
HK$7,367 HKD