Round|Natural|GIA

1.20ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2526662059

Certificate GIA 2526662059

Diamond specifications and retailer prices

From HK$16,972 HKD
As of November 1, 2026
Save HK$21,151 HKD (55%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: HK$49,200 HKD at NZ Jewellers · As of September 19, 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 2526662059. Listed at 21 retailers as of November 1, 2026, with a 125% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2526662059
Dimensions6.78 × 6.74 × 4.24 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
6.78 mm6.74 mm1.20 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2526662059
Side View
Table 58.0%Crown 35°Girdle: STK-STKPavilion 41.4°Culet: NoneDepth 62.7%

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: Nov 1
Current: HK$47,655 HKD|Low: HK$16,871 HKD|High: HK$47,655 HKD|Avg: HK$25,494 HKD
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 1, 2026
Retailer 13HK$16,972 HKD
Retailer 3HK$19,465 HKD
Retailer 8HK$20,407 HKD
Retailer 14HK$20,713 HKD
Retailer 7HK$21,026 HKD
Retailer 16HK$21,034 HKD
Retailer 15HK$22,282 HKD
Retailer 6HK$22,792 HKD
Retailer 9HK$23,618 HKD
Retailer 4HK$23,909 HKD
Retailer 11HK$24,225 HKD
Retailer 17HK$25,539 HKD
Retailer 5HK$26,299 HKD
Retailer 2HK$26,568 HKD
Retailer 12HK$28,018 HKD
Retailer 10HK$38,122 HKD
NZ JewellersHK$47,655 HKD

37 data points across 17 retailers

21 retailersHK$16,972 HKD to HK$38,122 HKD

A
Cheapest Retailer
-
HK$16,972 HKD
Retailer 2
-
HK$19,465 HKD
$2,481 USD
View
Price last confirmed 14 days ago
B+
Retailer 3
-
HK$20,407 HKD
$2,601 USD
View
Retailer 4
-
HK$20,713 HKD
$2,640 USD
View
Price last confirmed 7 days ago
B+
Retailer 5
-
HK$21,026 HKD
$2,680 USD
View
B+
Retailer 6
-
HK$21,034 HKD
$2,681 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$22,282 HKD
$2,840 USD
View
Retailer 8
-
HK$22,792 HKD
$2,905 USD
View
Price last confirmed 16 days ago
Retailer 9
-
HK$22,792 HKD
$2,905 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
HK$23,618 HKD
SGD 4,068 SGD
View
Retailer 11
-
HK$23,670 HKD
$3,017 USD
View
Price last confirmed 17 days ago
B+
Retailer 12
-
HK$23,909 HKD
$3,047 USD
View
B+
Retailer 13
-
HK$24,225 HKD
£2,431 GBP
View
Retailer 14
-
HK$25,539 HKD
A$5,008 AUD
View
Price last confirmed 24 days ago
Retailer 15
-
HK$26,299 HKD
$3,352 USD
View
Price last confirmed 11 days ago
B+
Retailer 16
-
HK$26,568 HKD
€3,225 EUR
View
Retailer 17
-
HK$27,154 HKD
$3,461 USD
View
Price last confirmed 40 days ago
B
Retailer 18
-
HK$28,018 HKD
ZAR 57,691 ZAR
View
B
Retailer 19
-
HK$38,122 HKD
£3,826 GBP
View
Retailer 20
-
HK$47,655 HKD
$6,074 USD
View
Price last confirmed 12 days ago
Most Expensive
NZ Jewellers
df505308-ff89-4381-967b-67b853d5eaea · Sep 19
HK$49,200 HKD
$6,271 USD
View
Price last confirmed 43 days ago
20 more retailers have this diamond
Prices start from HK$16,972 HKDSave up to HK$21,151 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
1.20ct Round
HK$16,972 HKD