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Round|Natural|GIA

1.20ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 5566280989

Certificate GIA 5566280989

Diamond specifications and retailer prices

From HK$18,076 HKD
As of November 1, 2026
Save HK$22,009 HKD (55%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$41,763 HKD at NZ Jewellers · As of October 17, 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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5566280989. Listed at 19 retailers as of November 1, 2026, with a 122% 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
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 5566280989
Dimensions6.76 × 6.73 × 4.27 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather, Indented Natural, Natural
Top View
6.76 mm6.73 mm1.20 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 5566280989
Side View
Table 56.0%Crown 36.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.3%

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$18,971 HKD|Low: HK$18,076 HKD|High: HK$40,574 HKD|Avg: HK$25,113 HKD|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 9HK$18,076 HKD
Retailer 1HK$18,971 HKD
Retailer 12HK$20,942 HKD
Retailer 13HK$22,125 HKD
Retailer 10HK$22,360 HKD
Retailer 5HK$23,343 HKD
Retailer 2HK$23,969 HKD
Retailer 4HK$23,969 HKD
Retailer 7HK$24,869 HKD
Retailer 3HK$25,608 HKD
Retailer 11HK$28,067 HKD
Retailer 8HK$29,464 HKD
Retailer 6HK$40,085 HKD

34 data points across 13 retailers

19 retailersHK$18,076 HKD to HK$40,085 HKD

A
Cheapest Retailer
-
HK$18,076 HKD
A
Retailer 2
-
HK$18,971 HKD
₹230,282 INR
View
A
Retailer 3
-
HK$20,942 HKD
SGD 3,607 SGD
View
A
Retailer 4
-
HK$21,513 HKD
$2,742 USD
View
A
Retailer 5
-
HK$22,125 HKD
$2,820 USD
View
Final sale: no returns
A
Retailer 6
-
HK$22,360 HKD
$2,850 USD
View
A
Retailer 7
-
HK$22,360 HKD
$2,850 USD
View
Retailer 8
-
HK$23,343 HKD
£2,343 GBP
View
Price last confirmed 32 days ago
Retailer 9
-
HK$23,969 HKD
$3,055 USD
View
Price last confirmed 12 days ago
Retailer 10
-
HK$23,969 HKD
$3,055 USD
View
Price last confirmed 16 days ago
A
Retailer 11
-
HK$24,869 HKD
£2,496 GBP
View
Retailer 12
-
HK$24,894 HKD
$3,173 USD
View
Price last confirmed 17 days ago
B+
Retailer 13
-
HK$25,116 HKD
SGD 4,326 SGD
View
Retailer 14
-
HK$25,608 HKD
A$5,022 AUD
View
Price last confirmed 24 days ago
Retailer 15
-
HK$27,656 HKD
$3,525 USD
View
Price last confirmed 13 days ago
B+
Retailer 16
-
HK$28,067 HKD
€3,407 EUR
View
B+
Retailer 17
-
HK$29,464 HKD
ZAR 60,669 ZAR
View
B
Retailer 18
-
HK$40,085 HKD
£4,023 GBP
View
Most Expensive
NZ Jewellers
cc253d74-bfa1-436e-a15f-ccc07b422e88 · Oct 17
HK$41,763 HKD
$5,323 USD
View
Price last confirmed 15 days ago
18 more retailers have this diamond
Prices start from HK$18,076 HKDSave up to HK$22,009 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$18,076 HKD