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Marquise|Natural|GIA

1.51ct F SI1 Marquise Natural Diamond

ID • F/SI1 • GIA 6555004556

Certificate GIA 6555004556

Diamond specifications and retailer prices

From HK$69,689 HKD
$8,882 USD
As of November 2, 2026
Save HK$42,620 HKD (38%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$112,309 HKD at NZ Jewellers · As of October 30, 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 F 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 6555004556. Listed at 9 retailers as of October 30, 2026, with prices from HK$69,689 to HK$112,309, a HK$42,620 spread on the same certified stone. NZ Jewellers lists it at HK$112,309. 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
F
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle37.35°
Pavilion angle41.16°
OriginNatural
Grading LabGIA
CertificateGIA 6555004556
Dimensions11.20 × 5.96 × 3.80 mm
L/W Ratio1.88
Top View
11.20 mm5.96 mm1.51 ctF / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6555004556
Side View
Table 61.0%Crown 37.35°Girdle: ThickPavilion 41.16°Culet: NoneDepth 63.8%

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 2
Current: HK$112,309 HKD|Low: HK$69,689 HKD|High: HK$112,309 HKD|Avg: HK$85,297 HKD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 2, 2026
Retailer 9HK$69,689 HKD
Retailer 10HK$73,675 HKD
Retailer 7HK$73,999 HKD
Retailer 2HK$75,388 HKD
Retailer 13HK$78,696 HKD
Retailer 12HK$80,579 HKD
Retailer 11HK$80,627 HKD
Retailer 8HK$81,819 HKD
Retailer 3HK$82,915 HKD
Retailer 5HK$94,333 HKD
Retailer 4HK$94,867 HKD
Retailer 6HK$105,236 HKD
NZ JewellersHK$112,309 HKD

21 data points across 13 retailers

9 retailersHK$69,689 HKD to HK$112,309 HKD

B+
Cheapest Retailer
-
HK$69,689 HKD
$8,882 USD
B+
Retailer 2
-
HK$73,675 HKD
$9,390 USD
View
Retailer 3
-
HK$73,999 HKD
A$14,510 AUD
View
Price last confirmed 10 days ago
B+
Retailer 4
-
HK$75,388 HKD
£7,566 GBP
View
B+
Retailer 5
-
HK$80,579 HKD
$10,270 USD
View
B+
Retailer 6
-
HK$80,627 HKD
$10,276 USD
View
B+
Retailer 7
-
HK$81,819 HKD
$10,428 USD
View
B
Retailer 8
-
HK$105,236 HKD
£10,561 GBP
View
Most Expensive
B
NZ Jewellers
45b6177d-5acf-4cbc-812e-31be09da4409 · Oct 30
HK$112,309 HKD
$14,314 USD
View
8 more retailers have this diamond
Prices start from HK$69,689 HKDSave up to HK$42,620 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$69,689 HKD