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Marquise|Natural|IGI

1.00ct J SI1 Marquise Natural Diamond

VG • J/SI1 • IGI 689598934

Shape and cutting style on the report: Marquise brilliant

Certificate IGI 689598934

Diamond specifications and retailer prices

From HK$10,988 HKD
As of November 6, 2026
Save HK$9,867 HKD (47%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: HK$31,389 HKD at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1ct natural marquise diamond

This 1ct natural marquise sits in the classic one-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI 689598934. Listed at 20 retailers as of November 1, 2026, with a 90% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.00
Carat
J
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle37.7°
Pavilion angle39.7°
OriginNatural
Grading LabIGI
CertificateIGI 689598934
Dimensions9.42 × 5.28 × 3.42 mm
L/W Ratio1.78
Girdle conditionFaceted
Culet sizePointed
Top View
9.42 mm5.28 mm1.00 ctJ / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateIGI 689598934
Side View
Table 56.0%Crown 37.7°Girdle: STK-THKPavilion 39.7°Culet: NoneDepth 64.8%

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 6
Current: HK$13,378 HKD|Low: HK$10,886 HKD|High: HK$22,807 HKD|Avg: HK$13,616 HKD|-4.2%
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
Retailer 14
November 6, 2026
Retailer 13HK$10,988 HKD
Retailer 3HK$11,035 HKD
Retailer 8HK$11,090 HKD
Retailer 4HK$11,881 HKD
Retailer 2HK$11,913 HKD
Retailer 12HK$11,913 HKD
Retailer 14HK$12,446 HKD
Retailer 11HK$12,618 HKD
Retailer 6HK$12,971 HKD
Retailer 1HK$13,378 HKD
Retailer 5HK$13,739 HKD
Retailer 7HK$14,531 HKD
Retailer 9HK$16,192 HKD
Retailer 10HK$20,855 HKD

45 data points across 14 retailers

20 retailersHK$10,988 HKD to HK$20,855 HKD

A
Cheapest Retailer
-
HK$10,988 HKD
Final sale: no returns
A
Retailer 2
-
HK$11,035 HKD
View
A
Retailer 3
-
HK$11,090 HKD
View
A
Retailer 4
-
HK$11,881 HKD
View
Retailer 5
-
HK$11,913 HKD
View
Price last confirmed 8 days ago
A
Retailer 6
-
HK$11,913 HKD
View
A
Retailer 7
-
HK$12,446 HKD
View
B+
Retailer 8
-
HK$12,618 HKD
View
Retailer 9
-
HK$12,869 HKD
View
Price last confirmed 53 days ago
Retailer 10
-
HK$12,869 HKD
View
Price last confirmed 36 days ago
B+
Retailer 11
-
HK$12,971 HKD
View
A
Retailer 12
-
HK$13,378 HKD
View
Retailer 13
-
HK$13,465 HKD
View
Price last confirmed 36 days ago
B+
Retailer 14
-
HK$13,739 HKD
View
B+
Retailer 15
-
HK$14,531 HKD
View
Retailer 16
-
HK$14,852 HKD
View
Price last confirmed 56 days ago
Retailer 17
-
HK$14,852 HKD
View
Price last confirmed 38 days ago
B+
Retailer 18
-
HK$16,192 HKD
View
B
Retailer 19
-
HK$20,855 HKD
View
Most Expensive
NZ Jewellers
36f09cd1-85cf-45be-90c3-571855ff41b1 · Sep 30
HK$31,389 HKD
$4,005 USD
View
Price last confirmed 37 days ago
19 more retailers have this diamond
Prices start from HK$10,988 HKDSave up to HK$9,867 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
1.00ct Marquise
HK$10,988 HKD