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Radiant|Natural|GIA

1.02ct E SI1 Radiant Natural Diamond

EX • E/SI1 • GIA 6551745420

Certificate GIA 6551745420

Diamond specifications and retailer prices

From HK$19,177 HKD
$2,444 USD
As of October 29, 2026
Save HK$22,527 HKD (54%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$41,704 HKD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.02ct natural radiant diamond

This 1.02ct natural radiant sits in the classic one-carat band, graded E 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 6551745420. Listed at 9 retailers as of October 27, 2026, with prices from HK$19,177 to HK$41,704, a HK$22,527 spread on the same certified stone. NZ Jewellers lists it at HK$41,704. 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

1.02
Carat
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle51.68°
Pavilion angle36.82°
OriginNatural
Grading LabGIA
CertificateGIA 6551745420
Dimensions6.57 × 5.06 × 3.43 mm
L/W Ratio1.30
Girdle conditionVery Thick
Key to symbols
Crystal, Feather, Pinpoint
Top View
6.57 mm5.06 mm1.02 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551745420
Side View
Table 73.0%Crown 51.68°GirdlePavilion 36.82°Culet: NoneDepth 67.7%

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 29
Current: HK$41,704 HKD|Low: HK$19,130 HKD|High: HK$42,112 HKD|Avg: HK$25,193 HKD|-1.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 30, 2026
Retailer 6HK$19,177 HKD
Retailer 2HK$19,517 HKD
Retailer 8HK$19,946 HKD
Retailer 3HK$20,714 HKD
Retailer 7HK$20,714 HKD
Retailer 5HK$20,871 HKD
Retailer 9HK$22,461 HKD
Retailer 4HK$34,997 HKD
NZ JewellersHK$41,704 HKD

35 data points across 9 retailers

9 retailersHK$19,177 HKD to HK$41,704 HKD

A
Cheapest Retailer
-
HK$19,177 HKD
$2,444 USD
A
Retailer 2
-
HK$19,517 HKD
£1,959 GBP
View
A
Retailer 3
-
HK$19,946 HKD
$2,542 USD
View
A
Retailer 4
-
HK$20,714 HKD
$2,640 USD
View
A
Retailer 5
-
HK$20,714 HKD
$2,640 USD
View
A
Retailer 6
-
HK$20,871 HKD
$2,660 USD
View
Retailer 7
-
HK$22,461 HKD
A$4,404 AUD
View
Price last confirmed 22 days ago
B
Retailer 8
-
HK$34,997 HKD
£3,512 GBP
View
Most Expensive
B
NZ Jewellers
bb6f3a46-66b6-4e71-a01a-43b9183a67b1 · Oct 27
HK$41,704 HKD
$5,315 USD
View
8 more retailers have this diamond
Prices start from HK$19,177 HKDSave up to HK$22,527 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
1.02ct Radiant
HK$19,177 HKD