CaratHunter
Plans
Marquise|Natural|GIA

1.23ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 1549965780

Certificate GIA 1549965780

Diamond specifications and retailer prices

From HK$45,049 HKD
As of November 6, 2026
Save HK$31,105 HKD (41%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$76,154 HKD at MOH London · As of November 4, 2026
View at MOH London

About this 1.23ct natural marquise diamond

This 1.23ct natural marquise sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1549965780. Listed at 9 retailers as of November 4, 2026, with prices from HK$45,049 to HK$76,154, a HK$31,105 spread on the same certified stone. MOH London lists it at HK$76,154. 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

1.23
Carat
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1549965780
Dimensions12.23 × 5.23 × 3.32 mm
L/W Ratio2.34
Key to symbols
Twinning Wisp, Feather, Crystal, Needle, Indented Natural
Top View
12.23 mm5.23 mm1.23 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 1549965780
Side View
Table 57.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.5%

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 6
Current: HK$76,154 HKD|Low: HK$38,874 HKD|High: HK$77,279 HKD|Avg: HK$51,688 HKD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4HK$38,999 HKD
Retailer 6HK$41,319 HKD
Retailer 5HK$45,049 HKD
Retailer 2HK$49,219 HKD
Retailer 7HK$50,826 HKD
Retailer 3HK$56,390 HKD
MOH LondonHK$76,154 HKD

41 data points across 7 retailers

9 retailersHK$45,049 HKD to HK$76,154 HKD

Retailer 1
-
HK$38,999 HKD
Price last confirmed 15 days ago
Retailer 2
-
HK$40,982 HKD
View
Price last confirmed 15 days ago
Retailer 3
-
HK$42,588 HKD
View
Price last confirmed 30 days ago
B+
Retailer 4
-
HK$45,049 HKD
View
B+
Retailer 5
-
HK$49,219 HKD
View
Retailer 6
-
HK$50,826 HKD
View
Price last confirmed 34 days ago
B
Retailer 7
-
HK$53,067 HKD
View
B
Retailer 8
-
HK$56,390 HKD
View
Most Expensive
B
MOH London
83C545528 · Nov 4
HK$76,154 HKD
£7,651 GBP
View
8 more retailers have this diamond
Prices start from HK$45,049 HKDSave up to HK$31,105 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+
1.23ct Marquise
HK$45,049 HKD