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Marquise|Natural|GIA

0.80ct F SI2 Marquise Natural Diamond

EX • F/SI2 • GIA 1242098634

Certificate GIA 1242098634

Diamond specifications and retailer prices

From HK$11,572 HKD
SGD 1,993 SGD
As of October 31, 2026
Save HK$9,480 HKD (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: HK$21,051 HKD at Helzberg Diamonds · As of November 2, 2026
View at Helzberg Diamonds

About this 0.8ct natural marquise diamond

This 0.8ct natural marquise sits in the just-under-one-carat band, graded F 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 1242098634. Listed at 12 retailers as of October 31, 2026, with prices from HK$11,572 to HK$21,051, a HK$9,480 spread on the same certified stone. Helzberg Diamonds lists it at HK$21,051. 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

0.80
Carat
F
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle38.17°
OriginNatural
Grading LabGIA
CertificateGIA 1242098634
Dimensions9.34 × 4.90 × 2.88 mm
L/W Ratio1.91
Culet sizeNone
Top View
9.34 mm4.90 mm0.80 ctF / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 1242098634
Side View
Table 60.0%Crown 38°Girdle: MED-THKPavilion 38.17°Culet: NoneDepth 58.7%

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$21,051 HKD|Low: HK$11,739 HKD|High: HK$21,051 HKD|Avg: HK$14,736 HKD
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 3, 2026
Retailer 10HK$11,739 HKD
Retailer 8HK$11,887 HKD
Retailer 9HK$11,942 HKD
Retailer 3HK$12,779 HKD
Retailer 2HK$13,027 HKD
Retailer 6HK$14,178 HKD
Retailer 5HK$14,727 HKD
Retailer 11HK$15,771 HKD
Retailer 4HK$16,543 HKD
Retailer 7HK$18,891 HKD
Helzberg DiamondsHK$21,051 HKD

19 data points across 11 retailers

12 retailersHK$11,572 HKD to HK$21,051 HKD

A
Cheapest Retailer
-
HK$11,572 HKD
SGD 1,993 SGD
A
Retailer 2
-
HK$11,739 HKD
$1,496 USD
View
A
Retailer 3
-
HK$11,887 HKD
$1,515 USD
View
A
Retailer 4
-
HK$11,942 HKD
$1,522 USD
View
A
Retailer 5
-
HK$12,779 HKD
SGD 2,201 SGD
View
A
Retailer 6
-
HK$13,027 HKD
£1,307 GBP
View
B+
Retailer 7
-
HK$14,178 HKD
$1,807 USD
View
B+
Retailer 8
-
HK$14,727 HKD
$1,877 USD
View
B+
Retailer 9
-
HK$15,771 HKD
$2,010 USD
View
B+
Retailer 10
-
HK$16,543 HKD
€2,008 EUR
View
Retailer 11
-
HK$18,891 HKD
$2,408 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Helzberg Diamonds
XZRHIKIGPOMJK · Nov 2
HK$21,051 HKD
$2,683 USD
View
11 more retailers have this diamond
Prices start from HK$11,572 HKDSave up to HK$9,480 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
0.80ct Marquise
HK$11,572 HKD