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Marquise|Natural|GIA

1.51ct J SI1 Marquise Natural Diamond

ID • J/SI1 • GIA 6545855164

Certificate GIA 6545855164

Diamond specifications and retailer prices

From HK$45,664 HKD
$5,820 USD
As of November 1, 2026
Save HK$36,445 HKD (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: HK$82,109 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545855164. Listed at 8 retailers as of November 1, 2026, with prices from HK$45,664 to HK$82,109, a HK$36,445 spread on the same certified stone. NZ Jewellers lists it at HK$82,109. 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
J
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle41.63°
Pavilion angle40.51°
OriginNatural
Grading LabGIA
CertificateGIA 6545855164
Dimensions10.29 × 5.82 × 4.01 mm
L/W Ratio1.77
Girdle conditionExtremely Thick
Key to symbols
Twinning Wisp, Feather, Crystal, Cavity, Needle, Indented Natural
Top View
10.29 mm5.82 mm1.51 ctJ / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 6545855164
Side View
Table 58.0%Crown 41.63°Girdle: Very ThickPavilion 40.51°Culet: NoneDepth 68.9%

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 1
Current: HK$82,109 HKD|Low: HK$39,034 HKD|High: HK$82,109 HKD|Avg: HK$50,394 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 3, 2026
Retailer 7HK$39,034 HKD
Retailer 9HK$43,254 HKD
Retailer 6HK$45,664 HKD
Retailer 3HK$47,232 HKD
Retailer 8HK$48,677 HKD
Retailer 2HK$49,093 HKD
Retailer 5HK$49,093 HKD
Retailer 10HK$50,764 HKD
Retailer 4HK$72,323 HKD
NZ JewellersHK$82,109 HKD

9 data points across 10 retailers

8 retailersHK$45,664 HKD to HK$82,109 HKD

Retailer 1
-
HK$39,034 HKD
$4,975 USD
Price last confirmed 12 days ago
B+
Retailer 2
-
HK$45,664 HKD
$5,820 USD
View
B+
Retailer 3
-
HK$47,232 HKD
£4,740 GBP
View
Retailer 4
-
HK$48,677 HKD
$6,204 USD
View
Price last confirmed 11 days ago
B+
Retailer 5
-
HK$49,093 HKD
$6,257 USD
View
B+
Retailer 6
-
HK$49,093 HKD
$6,257 USD
View
B
Retailer 7
-
HK$72,323 HKD
£7,258 GBP
View
Most Expensive
B
NZ Jewellers
585d15c7-17d9-4888-9413-d2b0a26f5a75 · Nov 3
HK$82,109 HKD
$10,465 USD
View
7 more retailers have this diamond
Prices start from HK$45,664 HKDSave up to HK$36,445 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$45,664 HKD