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Marquise|Natural|GIA

1.51ct I SI2 Marquise Natural Diamond

EX • I/SI2 • GIA 5566477733

Certificate GIA 5566477733

Diamond specifications and retailer prices

From HK$52,958 HKD
SGD 9,121 SGD
As of November 1, 2026
Save HK$22,114 HKD (29%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$75,071 HKD at Diamonds Direct · As of November 1, 2026
View at Diamonds Direct

About this 1.51ct natural marquise diamond

This 1.51ct natural marquise sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5566477733. Listed at 12 retailers as of November 1, 2026, with prices from HK$52,958 to HK$75,071, a HK$22,114 spread on the same certified stone. Diamonds Direct lists it at HK$75,071. 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
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle39.9°
Pavilion angle38.11°
OriginNatural
Grading LabGIA
CertificateGIA 5566477733
Dimensions11.22 × 5.93 × 3.64 mm
L/W Ratio1.89
Culet sizeNone
Top View
11.22 mm5.93 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5566477733
Side View
Table 59.0%Crown 39.9°Girdle: MED-THKPavilion 38.11°Culet: NoneDepth 61.5%

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$75,071 HKD|Low: HK$52,958 HKD|High: HK$75,071 HKD|Avg: HK$61,399 HKD
Diamonds Direct
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 3, 2026
Retailer 4HK$52,958 HKD
Retailer 7HK$54,993 HKD
Retailer 9HK$55,135 HKD
Retailer 8HK$55,237 HKD
Retailer 12HK$56,044 HKD
Retailer 11HK$56,814 HKD
Retailer 2HK$58,905 HKD
Retailer 3HK$65,975 HKD
Retailer 10HK$66,504 HKD
Retailer 6HK$66,953 HKD
Retailer 5HK$67,489 HKD
Diamonds DirectHK$75,071 HKD

31 data points across 12 retailers

12 retailersHK$52,958 HKD to HK$75,071 HKD

A
Cheapest Retailer
-
HK$52,958 HKD
SGD 9,121 SGD
A
Retailer 2
-
HK$54,993 HKD
$7,009 USD
View
A
Retailer 3
-
HK$55,135 HKD
SGD 9,496 SGD
View
B+
Retailer 4
-
HK$55,237 HKD
$7,040 USD
View
B+
Retailer 5
-
HK$56,044 HKD
$7,143 USD
View
B+
Retailer 6
-
HK$56,814 HKD
$7,241 USD
View
B+
Retailer 7
-
HK$58,905 HKD
£5,911 GBP
View
B+
Retailer 8
-
HK$65,975 HKD
$8,409 USD
View
B+
Retailer 9
-
HK$66,504 HKD
$8,476 USD
View
Retailer 10
-
HK$66,953 HKD
$8,533 USD
View
Price last confirmed 7 days ago
B+
Retailer 11
-
HK$67,489 HKD
€8,192 EUR
View
Most Expensive
B
Diamonds Direct
1129909 · Nov 1
HK$75,071 HKD
$9,568 USD
View
11 more retailers have this diamond
Prices start from HK$52,958 HKDSave up to HK$22,114 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$52,958 HKD