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Marquise|Natural|IGI

0.51ct G SI2 Marquise Natural Diamond

VG • G/SI2 • IGI 815681717

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 815681717

Diamond specifications and retailer prices

From HK$2,949 HKD
₹35,798 INR
As of October 27, 2026
Save HK$11,794 HKD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$14,743 HKD at NZ Jewellers · As of October 27, 2026
View at NZ Jewellers

About this 0.51ct natural marquise diamond

This 0.51ct natural marquise sits in the half to three-quarter carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 815681717. Listed at 12 retailers as of October 27, 2026, with prices from HK$2,949 to HK$14,743, a HK$11,794 spread on the same certified stone. NZ Jewellers lists it at HK$14,743. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle39.6°
Pavilion angle34.8°
OriginNatural
Grading LabIGI
CertificateIGI 815681717
Dimensions9.02 × 4.08 × 2.33 mm
L/W Ratio2.21
Girdle conditionFaceted
Top View
9.02 mm4.08 mm0.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 815681717
Side View
Table 59.0%Crown 39.6°Girdle: MED-THKPavilion 34.8°Culet: NoneDepth 57.1%

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: Oct 27
Current: HK$14,743 HKD|Low: HK$2,941 HKD|High: HK$14,743 HKD|Avg: HK$5,189 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
October 28, 2026
Retailer 10HK$2,949 HKD
Retailer 5HK$3,554 HKD
Retailer 13HK$3,845 HKD
Retailer 4HK$4,143 HKD
Retailer 11HK$4,441 HKD
Retailer 8HK$4,621 HKD
Retailer 7HK$4,670 HKD
Retailer 9HK$4,821 HKD
Retailer 3HK$4,877 HKD
Retailer 2HK$4,951 HKD
Retailer 6HK$5,363 HKD
Retailer 12HK$8,898 HKD
NZ JewellersHK$14,743 HKD

5 data points across 13 retailers

12 retailersHK$2,949 HKD to HK$14,743 HKD

A
Cheapest Retailer
-
HK$2,949 HKD
₹35,798 INR
Retailer 2
-
HK$3,845 HKD
$490 USD
View
Price last confirmed 7 days ago
Retailer 3
-
HK$4,143 HKD
$528 USD
View
Price last confirmed 8 days ago
B+
Retailer 4
-
HK$4,441 HKD
$566 USD
View
A
Retailer 5
-
HK$4,621 HKD
£464 GBP
View
B+
Retailer 6
-
HK$4,670 HKD
$595 USD
View
A
Retailer 7
-
HK$4,821 HKD
£484 GBP
View
Retailer 8
-
HK$4,877 HKD
$622 USD
View
Price last confirmed 7 days ago
B+
Retailer 9
-
HK$4,951 HKD
$631 USD
View
A
Retailer 10
-
HK$5,363 HKD
€651 EUR
View
B
Retailer 11
-
HK$8,898 HKD
£893 GBP
View
Price last confirmed 7 days ago
Most Expensive
C
NZ Jewellers
5fe76a14-e0cf-40a4-8f00-2a032bf2f2f6 · Oct 27
HK$14,743 HKD
$1,879 USD
View
11 more retailers have this diamond
Prices start from HK$2,949 HKDSave up to HK$11,794 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
0.51ct Marquise
HK$2,949 HKD