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Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 5563366918

Certificate GIA 5563366918

Diamond specifications and retailer prices

From HK$18,822 HKD
$2,399 USD
As of October 31, 2026
Save HK$28,056 HKD (60%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$46,878 HKD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 1.2ct natural round diamond

This 1.2ct natural round sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5563366918. Listed at 20 retailers as of October 27, 2026, with prices from HK$18,822 to HK$46,878, a HK$28,056 spread on the same certified stone. NZ Jewellers lists it at HK$46,878. 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

1.20
Carat
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5563366918
Dimensions6.76 × 6.71 × 4.24 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
6.76 mm6.71 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5563366918
Side View
Table 58.0%Crown 35.5°Girdle: Med. - Sli. ThickPavilion 41.2°Culet: NDepth 62.9%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: HK$46,878 HKD|Low: HK$18,822 HKD|High: HK$47,270 HKD|Avg: HK$24,824 HKD|-0.8%
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
Retailer 18
Retailer 19
November 1, 2026
Retailer 11HK$18,822 HKD
Retailer 18HK$20,085 HKD
Retailer 19HK$20,399 HKD
Retailer 7HK$20,697 HKD
Retailer 5HK$21,223 HKD
Retailer 12HK$21,279 HKD
Retailer 8HK$21,968 HKD
Retailer 14HK$22,423 HKD
Retailer 16HK$22,423 HKD
Retailer 9HK$22,831 HKD
Retailer 17HK$23,286 HKD
Retailer 6HK$23,538 HKD
Retailer 13HK$23,831 HKD
Retailer 15HK$24,157 HKD
Retailer 3HK$25,875 HKD
Retailer 2HK$26,139 HKD
Retailer 4HK$27,305 HKD
Retailer 10HK$39,497 HKD
NZ JewellersHK$46,878 HKD

20 data points across 19 retailers

20 retailersHK$18,822 HKD to HK$46,878 HKD

B+
Cheapest Retailer
-
HK$18,822 HKD
$2,399 USD
B+
Retailer 2
-
HK$20,085 HKD
$2,560 USD
View
B+
Retailer 3
-
HK$20,399 HKD
$2,600 USD
View
B+
Retailer 4
-
HK$20,697 HKD
$2,638 USD
View
Final sale: no returns
B+
Retailer 5
-
HK$21,223 HKD
$2,705 USD
View
B+
Retailer 6
-
HK$21,279 HKD
£2,136 GBP
View
B+
Retailer 7
-
HK$21,968 HKD
$2,800 USD
View
B+
Retailer 8
-
HK$22,423 HKD
$2,858 USD
View
B+
Retailer 9
-
HK$22,423 HKD
$2,858 USD
View
B
Retailer 10
-
HK$22,831 HKD
$2,910 USD
View
B+
Retailer 11
-
HK$23,286 HKD
$2,968 USD
View
B+
Retailer 12
-
HK$23,538 HKD
$3,000 USD
View
B+
Retailer 13
-
HK$23,831 HKD
£2,392 GBP
View
B
Retailer 14
-
HK$24,157 HKD
$3,079 USD
View
Retailer 15
-
HK$25,537 HKD
A$5,007 AUD
View
Price last confirmed 25 days ago
B
Retailer 16
-
HK$25,875 HKD
$3,298 USD
View
B
Retailer 17
-
HK$26,139 HKD
€3,173 EUR
View
B
Retailer 18
-
HK$27,305 HKD
ZAR 56,224 ZAR
View
B
Retailer 19
-
HK$39,497 HKD
£3,964 GBP
View
Most Expensive
C
NZ Jewellers
b2f06508-a94f-49b8-95ab-fca17bc7698d · Oct 27
HK$46,878 HKD
$5,975 USD
View
19 more retailers have this diamond
Prices start from HK$18,822 HKDSave up to HK$28,056 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.

B+
1.20ct Round
HK$18,822 HKD