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Round|Natural|GIA

1.20ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2504814178

Certificate GIA 2504814178

Diamond specifications and retailer prices

From HK$24,024 HKD
$3,062 USD
As of October 31, 2026
Save HK$30,167 HKD (56%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: HK$54,190 HKD at NZ Jewellers · As of October 30, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2504814178. Listed at 22 retailers as of October 30, 2026, with prices from HK$24,024 to HK$54,190, a HK$30,167 spread on the same certified stone. NZ Jewellers lists it at HK$54,190. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 2504814178
Dimensions6.87 × 6.85 × 4.18 mm
L/W Ratio1.00
Star length55%
Lower girdle75%
Top View
6.87 mm6.85 mm1.20 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2504814178
Side View
Table 60.0%Crown 32°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 61.0%

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$31,355 HKD|Low: HK$22,478 HKD|High: HK$52,640 HKD|Avg: HK$33,046 HKD|+1.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 9HK$24,024 HKD
Retailer 6HK$26,001 HKD
Retailer 5HK$26,464 HKD
Retailer 8HK$29,264 HKD
Retailer 1HK$31,355 HKD
Retailer 7HK$33,316 HKD
Retailer 2HK$34,171 HKD
Retailer 4HK$38,231 HKD
Retailer 3HK$52,012 HKD

43 data points across 9 retailers

22 retailersHK$24,024 HKD to HK$54,190 HKD

B+
Cheapest Retailer
-
HK$24,024 HKD
$3,062 USD
B+
Retailer 2
-
HK$24,306 HKD
$3,098 USD
View
B+
Retailer 3
-
HK$25,020 HKD
$3,189 USD
View
B+
Retailer 4
-
HK$25,870 HKD
A$5,073 AUD
View
B+
Retailer 5
-
HK$26,001 HKD
$3,314 USD
View
Final sale: no returns
B+
Retailer 6
-
HK$26,464 HKD
$3,373 USD
View
B+
Retailer 7
-
HK$27,068 HKD
$3,450 USD
View
B+
Retailer 8
-
HK$28,174 HKD
$3,591 USD
View
B+
Retailer 9
-
HK$28,174 HKD
$3,591 USD
View
B+
Retailer 10
-
HK$28,211 HKD
$3,596 USD
View
B
Retailer 11
-
HK$29,264 HKD
$3,730 USD
View
B+
Retailer 12
-
HK$31,355 HKD
£3,147 GBP
View
B+
Retailer 13
-
HK$31,461 HKD
$4,010 USD
View
B+
Retailer 14
-
HK$31,461 HKD
$4,010 USD
View
B
Retailer 15
-
HK$32,481 HKD
$4,140 USD
View
B
Retailer 16
-
HK$32,513 HKD
$4,144 USD
View
Retailer 17
-
HK$33,316 HKD
A$6,533 AUD
View
Price last confirmed 24 days ago
B
Retailer 18
-
HK$34,171 HKD
€4,148 EUR
View
Retailer 19
-
HK$35,212 HKD
$4,488 USD
View
Price last confirmed 10 days ago
B
Retailer 20
-
HK$38,231 HKD
ZAR 78,722 ZAR
View
B
Retailer 21
-
HK$52,012 HKD
£5,220 GBP
View
Most Expensive
B
NZ Jewellers
08346862-4419-48e2-ab77-6760ed94a92f · Oct 30
HK$54,190 HKD
$6,907 USD
View
21 more retailers have this diamond
Prices start from HK$24,024 HKDSave up to HK$30,167 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$24,024 HKD