CaratHunter
Plans
Radiant|Natural|GIA

1.00ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2566009790

Certificate GIA 2566009790

Diamond specifications and retailer prices

From HK$20,689 HKD
$2,637 USD
As of October 30, 2026
Save HK$21,521 HKD (51%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: HK$42,210 HKD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2566009790. Listed at 16 retailers as of October 30, 2026, with prices from HK$20,689 to HK$42,210, a HK$21,521 spread on the same certified stone. NZ Jewellers lists it at HK$42,210. 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

1.00
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2566009790
Dimensions6.62 × 5.00 × 3.43 mm
L/W Ratio1.32
Culet sizeNone
Key to symbols
Etch Channel, Feather, Crystal, Indented Natural, Natural
Top View
6.62 mm5.00 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2566009790
Side View
Table 67.0%CrownGirdle: THK-VTKPavilionCulet: NoneDepth 68.5%

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: Oct 30
Current: HK$42,210 HKD|Low: HK$20,689 HKD|High: HK$43,630 HKD|Avg: HK$27,222 HKD|-3.3%
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
November 1, 2026
Retailer 6HK$20,689 HKD
Retailer 3HK$21,701 HKD
Retailer 7HK$22,360 HKD
Retailer 4HK$23,576 HKD
Retailer 8HK$23,632 HKD
Retailer 2HK$24,228 HKD
Retailer 14HK$24,228 HKD
Retailer 10HK$25,104 HKD
Retailer 15HK$25,161 HKD
Retailer 13HK$26,559 HKD
Retailer 5HK$27,221 HKD
Retailer 12HK$27,954 HKD
Retailer 11HK$29,778 HKD
Retailer 9HK$40,514 HKD
NZ JewellersHK$42,210 HKD

27 data points across 15 retailers

16 retailersHK$20,689 HKD to HK$42,210 HKD

A
Cheapest Retailer
-
HK$20,689 HKD
$2,637 USD
A
Retailer 2
-
HK$21,701 HKD
$2,766 USD
View
B+
Retailer 3
-
HK$22,360 HKD
$2,850 USD
View
Final sale: no returns
B+
Retailer 4
-
HK$23,576 HKD
$3,005 USD
View
B+
Retailer 5
-
HK$23,632 HKD
£2,372 GBP
View
B+
Retailer 6
-
HK$24,228 HKD
$3,088 USD
View
B+
Retailer 7
-
HK$24,228 HKD
$3,088 USD
View
B+
Retailer 8
-
HK$25,104 HKD
£2,519 GBP
View
B+
Retailer 9
-
HK$25,161 HKD
$3,207 USD
View
B+
Retailer 10
-
HK$26,559 HKD
€3,224 EUR
View
Retailer 11
-
HK$26,853 HKD
A$5,266 AUD
View
Price last confirmed 28 days ago
B+
Retailer 12
-
HK$27,221 HKD
$3,470 USD
View
B+
Retailer 13
-
HK$27,954 HKD
$3,563 USD
View
B+
Retailer 14
-
HK$29,778 HKD
ZAR 61,316 ZAR
View
B
Retailer 15
-
HK$40,514 HKD
£4,066 GBP
View
Most Expensive
B
NZ Jewellers
6f4cbdf4-17be-487f-844a-3f5eb4e11e4a · Oct 30
HK$42,210 HKD
$5,380 USD
View
15 more retailers have this diamond
Prices start from HK$20,689 HKDSave up to HK$21,521 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
1.00ct Radiant
HK$20,689 HKD