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Marquise|Natural|GIA

1.20ct I SI2 Marquise Natural Diamond

ID • I/SI2 • GIA 6551627000

Certificate GIA 6551627000

Diamond specifications and retailer prices

From HK$22,250 HKD
As of November 6, 2026
Save HK$27,157 HKD (55%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: HK$49,407 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6551627000. Listed at 7 retailers as of November 3, 2026, with prices from HK$22,250 to HK$49,407, a HK$27,157 spread on the same certified stone. NZ Jewellers lists it at HK$49,407. 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
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.78°
Pavilion angle36.76°
OriginNatural
Grading LabGIA
CertificateGIA 6551627000
Dimensions10.21 × 5.67 × 3.37 mm
L/W Ratio1.80
Girdle conditionExtremely Thick
Key to symbols
Crystal, Cavity, Indented Natural, Natural
Top View
10.21 mm5.67 mm1.20 ctI / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551627000
Side View
Table 55.0%Crown 36.78°Girdle: THK-ETKPavilion 36.76°Culet: NoneDepth 59.5%

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 6
Current: HK$49,407 HKD|Low: HK$22,250 HKD|High: HK$49,407 HKD|Avg: HK$29,309 HKD|+17.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 5HK$22,250 HKD
Retailer 2HK$23,363 HKD
Retailer 7HK$23,630 HKD
Retailer 4HK$24,539 HKD
Retailer 6HK$24,609 HKD
Retailer 3HK$39,524 HKD
NZ JewellersHK$49,407 HKD

28 data points across 7 retailers

7 retailersHK$22,250 HKD to HK$49,407 HKD

A
Cheapest Retailer
-
HK$22,250 HKD
A
Retailer 2
-
HK$23,363 HKD
View
A
Retailer 3
-
HK$23,630 HKD
View
A
Retailer 4
-
HK$24,539 HKD
View
B+
Retailer 5
-
HK$24,609 HKD
View
B
Retailer 6
-
HK$39,524 HKD
View
Most Expensive
C
NZ Jewellers
4624b2ba-83d1-4a60-95fc-56cc7e6a4270 · Nov 3
HK$49,407 HKD
$6,304 USD
View
6 more retailers have this diamond
Prices start from HK$22,250 HKDSave up to HK$27,157 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 Marquise
HK$22,250 HKD