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Marquise|Natural|GIA

1.20ct I SI1 Marquise Natural Diamond

GD • I/SI1 • GIA 7568597454

Certificate GIA 7568597454

Diamond specifications and retailer prices

From HK$25,205 HKD
As of November 4, 2026
Save HK$22,728 HKD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$47,934 HKD at Helzberg Diamonds · As of November 6, 2026
View at Helzberg Diamonds

About this 1.2ct natural marquise diamond

This 1.2ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 7568597454. Listed at 14 retailers as of November 4, 2026, with prices from HK$25,205 to HK$47,934, a HK$22,728 spread on the same certified stone. Helzberg Diamonds lists it at HK$47,934. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.20
Carat
I
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle38.98°
Pavilion angle40.29°
OriginNatural
Grading LabGIA
CertificateGIA 7568597454
Dimensions10.11 × 5.45 × 3.56 mm
L/W Ratio1.86
Culet sizeNone
Top View
10.11 mm5.45 mm1.20 ctI / SI1
OriginNatural
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 7568597454
Side View
Table 55.0%Crown 38.98°Girdle: STK-ETKPavilion 40.29°Culet: NDepth 65.4%

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: Nov 4
Current: HK$47,934 HKD|Low: HK$25,205 HKD|High: HK$47,934 HKD|Avg: HK$32,980 HKD
Helzberg Diamonds
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 7, 2026
Retailer 13HK$25,205 HKD
Retailer 11HK$25,628 HKD
Retailer 8HK$25,816 HKD
Retailer 6HK$26,929 HKD
Retailer 12HK$27,392 HKD
Retailer 2HK$29,108 HKD
Retailer 5HK$30,362 HKD
Retailer 9HK$31,922 HKD
Retailer 14HK$32,149 HKD
Retailer 4HK$32,604 HKD
Retailer 7HK$33,513 HKD
Retailer 10HK$42,510 HKD
Retailer 3HK$45,018 HKD
Helzberg DiamondsHK$47,934 HKD

24 data points across 14 retailers

14 retailersHK$25,205 HKD to HK$47,934 HKD

B+
Cheapest Retailer
-
HK$25,205 HKD
B+
Retailer 2
-
HK$25,628 HKD
View
B+
Retailer 3
-
HK$25,816 HKD
View
B
Retailer 4
-
HK$26,929 HKD
View
B
Retailer 5
-
HK$27,392 HKD
View
B
Retailer 6
-
HK$29,108 HKD
View
B
Retailer 7
-
HK$30,362 HKD
View
B
Retailer 8
-
HK$31,922 HKD
View
B
Retailer 9
-
HK$32,149 HKD
View
B
Retailer 10
-
HK$32,604 HKD
View
B
Retailer 11
-
HK$33,513 HKD
View
C
Retailer 12
-
HK$42,510 HKD
View
C
Retailer 13
-
HK$45,018 HKD
View
Most Expensive
C
Helzberg Diamonds
XZRNLMOLPNKLK · Nov 6
HK$47,934 HKD
$6,116 USD
View
13 more retailers have this diamond
Prices start from HK$25,205 HKDSave up to HK$22,728 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 Marquise
HK$25,205 HKD