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Marquise|Natural|GIA

1.51ct M SI1 Marquise Natural Diamond

EX • M/SI1 • GIA 6541762945

Certificate GIA 6541762945

Diamond specifications and retailer prices

From HK$23,277 HKD
As of November 3, 2026
Save HK$18,355 HKD (44%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: HK$41,632 HKD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded M colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6541762945. Listed at 6 retailers as of November 3, 2026, with prices from HK$23,277 to HK$41,632, a HK$18,355 spread on the same certified stone. NZ Jewellers lists it at HK$41,632. 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

1.51
Carat
M
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
Crown angle39.81°
Pavilion angle39.26°
OriginNatural
Grading LabGIA
CertificateGIA 6541762945
Dimensions10.82 × 5.87 × 3.82 mm
L/W Ratio1.84
Girdle conditionVery Thick
Key to symbols
Crystal, Natural
Top View
10.82 mm5.87 mm1.51 ctM / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceStrong
CertificateGIA 6541762945
Side View
Table 58.0%Crown 39.81°GirdlePavilion 39.26°CuletDepth 65.2%

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 3
Current: HK$41,632 HKD|Low: HK$23,277 HKD|High: HK$43,827 HKD|Avg: HK$30,231 HKD|-5.0%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 4HK$23,277 HKD
Retailer 6HK$23,896 HKD
Retailer 3HK$23,935 HKD
Retailer 2HK$24,453 HKD
Retailer 5HK$24,813 HKD
NZ JewellersHK$41,632 HKD
Retailer 7HK$43,741 HKD

32 data points across 7 retailers

6 retailersHK$23,277 HKD to HK$41,632 HKD

B+
Cheapest Retailer
-
HK$23,277 HKD
B+
Retailer 2
-
HK$23,896 HKD
View
B+
Retailer 3
-
HK$23,935 HKD
View
B+
Retailer 4
-
HK$24,453 HKD
View
B+
Retailer 5
-
HK$24,813 HKD
View
Most Expensive
C
NZ Jewellers
b4c3c89b-8a51-4fad-ba38-925304eea404 · Nov 3
HK$41,632 HKD
$5,312 USD
View
5 more retailers have this diamond
Prices start from HK$23,277 HKDSave up to HK$18,355 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+
1.51ct Marquise
HK$23,277 HKD