Radiant|Natural|GIA

2.51ct K SI2 Radiant Natural Diamond

VG • K/SI2 • GIA 6421042796

Certificate GIA 6421042796

Diamond specifications and retailer prices

From HK$76,054 HKD
As of November 6, 2026
Save HK$19,543 HKD (20%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: HK$95,597 HKD at 77 Diamonds · As of November 7, 2026
View at 77 Diamonds

About this 2.51ct natural radiant diamond

This 2.51ct natural radiant sits in the two to three carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6421042796. Listed at 2 retailers as of November 6, 2026, with prices from HK$76,054 to HK$95,597, a HK$19,543 spread on the same certified stone. 77 Diamonds lists it at HK$95,597. 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

2.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6421042796
Dimensions8.17 × 6.65 × 4.89 mm
L/W Ratio1.23
Top View
8.17 mm6.65 mm2.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6421042796
Side View
Table 62.0%CrownGirdle: VTK-XTKPavilionCulet: NoneDepth 73.5%

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 6
Current: HK$95,597 HKD|Low: HK$76,054 HKD|High: HK$97,126 HKD|Avg: HK$86,758 HKD|+0.8%
77 Diamonds
Retailer 2
November 7, 2026
Retailer 2HK$76,054 HKD
77 DiamondsHK$95,597 HKD

46 data points across 2 retailers

2 retailersHK$76,054 HKD to HK$95,597 HKD

A
Cheapest Retailer
-
HK$76,054 HKD
Most Expensive
B+
77 Diamonds
RADMBDGECHCBM · Nov 7
HK$95,597 HKD
£9,604 GBP
View
1 more retailer has this diamond
Prices start from HK$76,054 HKDSave up to HK$19,543 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
2.51ct Radiant
HK$76,054 HKD