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Radiant|Natural|GIA

0.51ct G SI2 Radiant Natural Diamond

ID • G/SI2 • GIA 2556750688

Certificate GIA 2556750688

Diamond specifications and retailer prices

From HK$3,515 HKD
$448 USD
As of November 1, 2026
Save HK$10,144 HKD (74%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$13,659 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.51ct natural radiant diamond

This 0.51ct natural radiant sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556750688. Listed at 17 retailers as of October 30, 2026, with prices from HK$3,515 to HK$13,659, a HK$10,144 spread on the same certified stone. NZ Jewellers lists it at HK$13,659. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle53.9°
OriginNatural
Grading LabGIA
CertificateGIA 2556750688
Dimensions5.96 × 3.87 × 2.61 mm
L/W Ratio1.54
Girdle conditionPolished
Culet sizeNone
Top View
5.96 mm3.87 mm0.51 ctG / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556750688
Side View
Table 66.0%Crown 36°Girdle: MED-STKPavilion 53.9°Culet: NoneDepth 67.5%

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 1
Current: HK$13,659 HKD|Low: HK$3,099 HKD|High: HK$14,114 HKD|Avg: HK$5,427 HKD|-3.2%
NZ Jewellers
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
Retailer 15
Retailer 16
Retailer 17
November 2, 2026
Retailer 15HK$3,515 HKD
Retailer 6HK$3,640 HKD
Retailer 12HK$3,727 HKD
Retailer 4HK$3,946 HKD
Retailer 9HK$4,017 HKD
Retailer 7HK$4,252 HKD
Retailer 8HK$4,252 HKD
Retailer 3HK$4,551 HKD
Retailer 14HK$4,590 HKD
Retailer 5HK$4,778 HKD
Retailer 2HK$5,203 HKD
Retailer 16HK$5,458 HKD
Retailer 11HK$5,502 HKD
Retailer 17HK$5,539 HKD
Retailer 10HK$5,874 HKD
Retailer 13HK$10,064 HKD
NZ JewellersHK$13,659 HKD

35 data points across 17 retailers

17 retailersHK$3,515 HKD to HK$13,659 HKD

A
Cheapest Retailer
-
HK$3,515 HKD
$448 USD
A
Retailer 2
-
HK$3,640 HKD
$464 USD
View
Final sale: no returns
A
Retailer 3
-
HK$3,727 HKD
$475 USD
View
A
Retailer 4
-
HK$3,946 HKD
$503 USD
View
A
Retailer 5
-
HK$4,017 HKD
View
A
Retailer 6
-
HK$4,252 HKD
$542 USD
View
A
Retailer 7
-
HK$4,252 HKD
$542 USD
View
A
Retailer 8
-
HK$4,551 HKD
$580 USD
View
A
Retailer 9
-
HK$4,590 HKD
$585 USD
View
A
Retailer 10
-
HK$4,778 HKD
$609 USD
View
A
Retailer 11
-
HK$5,203 HKD
£522 GBP
View
A
Retailer 12
-
HK$5,458 HKD
£548 GBP
View
A
Retailer 13
-
HK$5,502 HKD
£552 GBP
View
A
Retailer 14
-
HK$5,539 HKD
$706 USD
View
B+
Retailer 15
-
HK$5,874 HKD
€713 EUR
View
B
Retailer 16
-
HK$10,064 HKD
£1,010 GBP
View
Most Expensive
B
NZ Jewellers
e6671163-bf29-4252-8837-769f134d2016 · Oct 30
HK$13,659 HKD
$1,741 USD
View
16 more retailers have this diamond
Prices start from HK$3,515 HKDSave up to HK$10,144 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
0.51ct Radiant
HK$3,515 HKD