Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6521501206

Certificate GIA 6521501206

Diamond specifications and retailer prices

From HK$42,287 HKD
A$8,292 AUD
As of October 31, 2026
Save HK$31,686 HKD (43%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: HK$86,052 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 D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6521501206. Listed at 19 retailers as of October 31, 2026, with a 75% 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
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 6521501206
Dimensions6.76 × 6.80 × 4.26 mm
L/W Ratio1.01
Star length45%
Lower girdle75%
Top View
6.76 mm6.80 mm1.20 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521501206
Side View
Table 56.0%Crown 35°Girdle: THN-STKPavilion 41.4°CuletDepth 62.8%

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$48,313 HKD|Low: HK$44,870 HKD|High: HK$74,870 HKD|Avg: HK$53,486 HKD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 7HK$44,870 HKD
Retailer 2HK$45,348 HKD
Retailer 10HK$47,490 HKD
Retailer 9HK$47,780 HKD
Retailer 1HK$48,313 HKD
Retailer 6HK$49,017 HKD
Retailer 8HK$50,192 HKD
Retailer 5HK$56,224 HKD
Retailer 4HK$63,211 HKD
Retailer 3HK$73,973 HKD

42 data points across 10 retailers

19 retailersHK$42,287 HKD to HK$73,973 HKD

B+
Cheapest Retailer
-
HK$42,287 HKD
A$8,292 AUD
B+
Retailer 2
-
HK$44,870 HKD
$5,719 USD
View
B+
Retailer 3
-
HK$45,348 HKD
$5,780 USD
View
Retailer 4
-
HK$47,490 HKD
$6,053 USD
View
Price last confirmed 16 days ago
B
Retailer 5
-
HK$47,780 HKD
$6,090 USD
View
B+
Retailer 6
-
HK$48,313 HKD
£4,849 GBP
View
B
Retailer 7
-
HK$49,017 HKD
£4,919 GBP
View
Retailer 8
-
HK$50,192 HKD
A$9,842 AUD
View
Price last confirmed 22 days ago
Retailer 9
-
HK$51,444 HKD
$6,557 USD
View
Price last confirmed 39 days ago
Retailer 10
-
HK$51,444 HKD
$6,557 USD
View
Price last confirmed 14 days ago
Retailer 11
-
HK$52,237 HKD
$6,658 USD
View
Price last confirmed 16 days ago
B
Retailer 12
-
HK$52,693 HKD
$6,716 USD
View
B
Retailer 13
-
HK$56,224 HKD
€6,825 EUR
View
Retailer 14
-
HK$59,361 HKD
$7,566 USD
View
Price last confirmed 40 days ago
Retailer 15
-
HK$59,361 HKD
$7,566 USD
View
Price last confirmed 13 days ago
B
Retailer 16
-
HK$63,211 HKD
ZAR 130,158 ZAR
View
B
Retailer 17
-
HK$73,973 HKD
£7,424 GBP
View
Retailer 18
-
HK$86,052 HKD
$10,968 USD
View
Price last confirmed 37 days ago
Most Expensive
NZ Jewellers
ff94d009-ce99-4fd1-aa99-fb89a8136b35 · Oct 17
HK$86,052 HKD
$10,968 USD
View
Price last confirmed 15 days ago
18 more retailers have this diamond
Prices start from HK$42,287 HKDSave up to HK$31,686 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$42,287 HKD