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Marquise|Natural|GIA

1.02ct I SI1 Marquise Natural Diamond

EX • I/SI1 • GIA 1242036004

Certificate GIA 1242036004

Diamond specifications and retailer prices

From HK$20,879 HKD
As of October 31, 2026
Save HK$18,818 HKD (47%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: HK$39,696 HKD at Helzberg Diamonds · As of November 3, 2026
View at Helzberg Diamonds

About this 1.02ct natural marquise diamond

This 1.02ct natural marquise sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242036004. Listed at 14 retailers as of October 31, 2026, with prices from HK$20,879 to HK$39,696, a HK$18,818 spread on the same certified stone. Helzberg Diamonds lists it at HK$39,696. 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

1.02
Carat
I
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.06°
Pavilion angle40.17°
OriginNatural
Grading LabGIA
CertificateGIA 1242036004
Dimensions9.96 × 5.23 × 3.30 mm
L/W Ratio1.90
Culet sizeNone
Top View
9.96 mm5.23 mm1.02 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242036004
Side View
Table 60.0%Crown 38.06°Girdle: MED-THKPavilion 40.17°Culet: NoneDepth 63.1%

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 31
Current: HK$39,696 HKD|Low: HK$20,879 HKD|High: HK$40,496 HKD|Avg: HK$27,229 HKD|-2.0%
Helzberg Diamonds
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 5, 2026
Retailer 10HK$20,879 HKD
Retailer 2HK$21,388 HKD
Retailer 6HK$21,412 HKD
Retailer 11HK$22,509 HKD
Retailer 12HK$22,572 HKD
Retailer 7HK$24,382 HKD
Retailer 4HK$25,150 HKD
Retailer 14HK$26,898 HKD
Retailer 3HK$27,611 HKD
Retailer 8HK$27,831 HKD
Retailer 9HK$28,967 HKD
Retailer 13HK$35,213 HKD
Retailer 5HK$37,322 HKD
Helzberg DiamondsHK$39,696 HKD

35 data points across 14 retailers

14 retailersHK$20,879 HKD to HK$39,696 HKD

A
Cheapest Retailer
-
HK$20,879 HKD
A
Retailer 2
-
HK$21,388 HKD
View
A
Retailer 3
-
HK$21,412 HKD
View
B+
Retailer 4
-
HK$22,509 HKD
View
B+
Retailer 5
-
HK$22,572 HKD
View
B+
Retailer 6
-
HK$24,382 HKD
View
B+
Retailer 7
-
HK$25,150 HKD
View
B+
Retailer 8
-
HK$26,898 HKD
View
B+
Retailer 9
-
HK$27,611 HKD
View
B+
Retailer 10
-
HK$27,831 HKD
View
B+
Retailer 11
-
HK$28,967 HKD
View
B
Retailer 12
-
HK$35,213 HKD
View
B
Retailer 13
-
HK$37,322 HKD
View
Most Expensive
B
Helzberg Diamonds
XZRHIKIGJMGGK · Nov 3
HK$39,696 HKD
$5,065 USD
View
13 more retailers have this diamond
Prices start from HK$20,879 HKDSave up to HK$18,818 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
1.02ct Marquise
HK$20,879 HKD