CaratHunter
Plans
Round|Natural|GIA

1.20ct D SI1 Round Natural Diamond

ID • D/SI1 • GIA 671

Certificate GIA 671

Diamond specifications and retailer prices

From HK$23,692 HKD
As of November 4, 2026
Save HK$42,769 HKD (64%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: HK$75,372 HKD at NZ Jewellers · As of September 24, 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. Listed at 28 retailers as of November 4, 2026, with a 181% 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 671
Dimensions6.71 × 6.76 × 4.24 mm
L/W Ratio1.01
Top View
6.71 mm6.76 mm1.20 ctD / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 671
Side View
Table 56.0%CrownGirdle: Thin to Slightly ThickPavilionCulet: NDepth 62.9%

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 4
Current: HK$66,461 HKD|Low: HK$25,738 HKD|High: HK$67,660 HKD|Avg: HK$40,687 HKD|-1.8%
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
November 6, 2026
Retailer 14HK$27,987 HKD
Retailer 11HK$32,008 HKD
Retailer 6HK$33,411 HKD
Retailer 7HK$35,590 HKD
Retailer 2HK$36,499 HKD
Retailer 13HK$36,632 HKD
Retailer 3HK$37,384 HKD
Retailer 9HK$38,145 HKD
Retailer 12HK$38,145 HKD
Retailer 8HK$42,103 HKD
Retailer 4HK$44,352 HKD
Retailer 5HK$45,057 HKD
Retailer 10HK$60,591 HKD
NZ JewellersHK$66,461 HKD

29 data points across 14 retailers

28 retailersHK$23,692 HKD to HK$66,461 HKD

A
Cheapest Retailer
-
HK$23,692 HKD
A
Retailer 2
-
HK$25,667 HKD
View
A
Retailer 3
-
HK$27,987 HKD
View
B+
Retailer 4
-
HK$30,323 HKD
View
B+
Retailer 5
-
HK$32,008 HKD
View
Retailer 6
-
HK$32,478 HKD
View
Price last confirmed 15 days ago
B+
Retailer 7
-
HK$33,411 HKD
View
B+
Retailer 8
-
HK$35,590 HKD
View
Retailer 9
-
HK$36,240 HKD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
HK$36,499 HKD
View
B+
Retailer 11
-
HK$36,632 HKD
View
B+
Retailer 12
-
HK$37,384 HKD
View
B+
Retailer 13
-
HK$38,145 HKD
View
B+
Retailer 14
-
HK$38,145 HKD
View
Retailer 15
-
HK$38,834 HKD
View
Price last confirmed 15 days ago
B+
Retailer 16
-
HK$42,103 HKD
View
B+
Retailer 17
-
HK$44,352 HKD
View
B+
Retailer 18
-
HK$45,057 HKD
View
Retailer 19
-
HK$45,065 HKD
View
Price last confirmed 60 days ago
Retailer 20
-
HK$45,065 HKD
View
Price last confirmed 50 days ago
Retailer 21
-
HK$45,065 HKD
View
Price last confirmed 50 days ago
Retailer 22
-
HK$45,065 HKD
View
Price last confirmed 45 days ago
Retailer 23
-
HK$45,065 HKD
View
Price last confirmed 44 days ago
B
Retailer 24
-
HK$60,591 HKD
View
B
Retailer 25
-
HK$61,046 HKD
View
B
Retailer 26
-
HK$66,461 HKD
View
Retailer 27
-
HK$75,372 HKD
View
Price last confirmed 49 days ago
Most Expensive
NZ Jewellers
d0f9916a-4647-440b-a993-8f6e9e83742b · Sep 24
HK$75,372 HKD
$9,617 USD
View
Price last confirmed 43 days ago
27 more retailers have this diamond
Prices start from HK$23,692 HKDSave up to HK$42,769 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$23,692 HKD