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Marquise|Natural|GIA

1.51ct D SI2 Marquise Natural Diamond

EX • D/SI2 • GIA 2556189473

Certificate GIA 2556189473

Diamond specifications and retailer prices

From HK$49,988 HKD
SGD 8,610 SGD
As of November 1, 2026
Save HK$16,591 HKD (25%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$66,579 HKD at The Diamond Guys · As of November 2, 2026
View at The Diamond Guys

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 SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556189473. Listed at 9 retailers as of November 1, 2026, with prices from HK$49,988 to HK$66,579, a HK$16,591 spread on the same certified stone. The Diamond Guys lists it at HK$66,579. 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
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.8°
Pavilion angle38.25°
OriginNatural
Grading LabGIA
CertificateGIA 2556189473
Dimensions11.31 × 5.98 × 3.69 mm
L/W Ratio1.89
Top View
11.31 mm5.98 mm1.51 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556189473
Side View
Table 59.0%Crown 39.8°Girdle: STK-THKPavilion 38.25°Culet: NoneDepth 61.8%

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$55,159 HKD|Low: HK$49,988 HKD|High: HK$69,505 HKD|Avg: HK$58,429 HKD|-8.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4HK$49,988 HKD
Retailer 3HK$51,381 HKD
Retailer 5HK$52,038 HKD
Retailer 8HK$53,625 HKD
Retailer 1HK$55,159 HKD
Retailer 2HK$55,861 HKD
Retailer 7HK$62,472 HKD
Retailer 6HK$63,983 HKD
Retailer 9HK$66,135 HKD

43 data points across 9 retailers

9 retailersHK$49,988 HKD to HK$66,579 HKD

A
Cheapest Retailer
-
HK$49,988 HKD
SGD 8,610 SGD
A
Retailer 2
-
HK$51,381 HKD
$6,549 USD
View
A
Retailer 3
-
HK$52,038 HKD
SGD 8,963 SGD
View
A
Retailer 4
-
HK$53,625 HKD
$6,835 USD
View
A
Retailer 5
-
HK$55,159 HKD
£5,536 GBP
View
A
Retailer 6
-
HK$55,861 HKD
$7,120 USD
View
A
Retailer 7
-
HK$62,472 HKD
$7,963 USD
View
A
Retailer 8
-
HK$63,983 HKD
$8,155 USD
View
Most Expensive
A
The Diamond Guys
1955282050 · Nov 2
HK$66,579 HKD
$8,486 USD
View
8 more retailers have this diamond
Prices start from HK$49,988 HKDSave up to HK$16,591 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$49,988 HKD