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Marquise|Natural|GIA

1.51ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 5556475896

Certificate GIA 5556475896

Diamond specifications and retailer prices

From HK$81,281 HKD
$10,360 USD
As of November 1, 2026
Save HK$44,176 HKD (35%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: HK$137,535 HKD at NZ Jewellers · As of September 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 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 5556475896. Listed at 17 retailers as of November 1, 2026, with a 54% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5556475896
Dimensions11.22 × 5.92 × 3.74 mm
L/W Ratio1.90
Top View
11.22 mm5.92 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5556475896
Side View
Table 57.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 63.2%

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 1
Current: HK$89,871 HKD|Low: HK$81,281 HKD|High: HK$130,090 HKD|Avg: HK$95,211 HKD|-3.9%
Retailer 1
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 11HK$81,281 HKD
Retailer 4HK$82,270 HKD
Retailer 5HK$82,956 HKD
Retailer 7HK$86,055 HKD
Retailer 12HK$87,440 HKD
Retailer 10HK$88,484 HKD
Retailer 13HK$88,672 HKD
Retailer 1HK$89,871 HKD
Retailer 2HK$95,736 HKD
Retailer 3HK$98,355 HKD
Retailer 6HK$101,187 HKD
Retailer 9HK$118,014 HKD
Retailer 8HK$125,457 HKD

35 data points across 13 retailers

17 retailersHK$81,281 HKD to HK$125,457 HKD

A
Cheapest Retailer
-
HK$81,281 HKD
$10,360 USD
B+
Retailer 2
-
HK$82,270 HKD
$10,486 USD
View
B+
Retailer 3
-
HK$86,055 HKD
£8,637 GBP
View
B+
Retailer 4
-
HK$87,440 HKD
$11,145 USD
View
Retailer 5
-
HK$88,484 HKD
A$17,351 AUD
View
Price last confirmed 9 days ago
B+
Retailer 6
-
HK$88,672 HKD
$11,302 USD
View
Final sale: no returns
B+
Retailer 7
-
HK$89,871 HKD
£9,020 GBP
View
Retailer 8
-
HK$91,089 HKD
$11,610 USD
View
Price last confirmed 25 days ago
B+
Retailer 9
-
HK$95,736 HKD
$12,202 USD
View
B+
Retailer 10
-
HK$98,355 HKD
$12,536 USD
View
Retailer 11
-
HK$98,675 HKD
$12,577 USD
View
Price last confirmed 25 days ago
Retailer 12
-
HK$100,197 HKD
$12,771 USD
View
Price last confirmed 32 days ago
B+
Retailer 13
-
HK$101,187 HKD
€12,283 EUR
View
Retailer 14
-
HK$113,857 HKD
$14,512 USD
View
Price last confirmed 34 days ago
B
Retailer 15
-
HK$118,014 HKD
ZAR 243,003 ZAR
View
B
Retailer 16
-
HK$125,457 HKD
£12,591 GBP
View
Most Expensive
NZ Jewellers
7136c892-d8bc-4c2c-b4b7-52dc21fd2e22 · Sep 30
HK$137,535 HKD
$17,530 USD
View
Price last confirmed 32 days ago
16 more retailers have this diamond
Prices start from HK$81,281 HKDSave up to HK$44,176 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
1.51ct Marquise
HK$81,281 HKD