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Marquise|Natural|GIA

0.31ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6565618991

Certificate GIA 6565618991

Diamond specifications and retailer prices

From HK$2,764 HKD
SGD 476 SGD
As of November 2, 2026
Save HK$2,097 HKD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: HK$4,861 HKD at Yorxs · As of November 2, 2026
View at Yorxs

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6565618991. Listed at 9 retailers as of November 2, 2026, with prices from HK$2,764 to HK$4,861, a HK$2,097 spread on the same certified stone. Yorxs lists it at HK$4,861. 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

0.31
Carat
F
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
Crown angle38.91°
Pavilion angle37.46°
OriginNatural
Grading LabGIA
CertificateGIA 6565618991
Dimensions7.33 × 3.49 × 2.08 mm
L/W Ratio2.10
Culet sizeNone
Top View
7.33 mm3.49 mm0.31 ctF / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 6565618991
Side View
Table 58.0%Crown 38.91°Girdle: THN-VTKPavilion 37.46°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: HK$3,652 HKD|Low: HK$2,764 HKD|High: HK$4,861 HKD|Avg: HK$3,656 HKD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 3, 2026
Retailer 6HK$2,764 HKD
Retailer 4HK$3,209 HKD
Retailer 2HK$3,543 HKD
Retailer 5HK$3,585 HKD
Retailer 1HK$3,652 HKD
Retailer 3HK$3,860 HKD
Retailer 7HK$4,104 HKD
YorxsHK$4,861 HKD

19 data points across 8 retailers

9 retailersHK$2,764 HKD to HK$4,861 HKD

B+
Cheapest Retailer
-
HK$2,764 HKD
SGD 476 SGD
B+
Retailer 2
-
HK$3,095 HKD
SGD 533 SGD
View
B+
Retailer 3
-
HK$3,209 HKD
$409 USD
View
B
Retailer 4
-
HK$3,543 HKD
£356 GBP
View
B
Retailer 5
-
HK$3,585 HKD
$457 USD
View
B
Retailer 6
-
HK$3,652 HKD
£366 GBP
View
B
Retailer 7
-
HK$3,860 HKD
$492 USD
View
B
Retailer 8
-
HK$4,104 HKD
$523 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Yorxs
621633242 · Nov 2
HK$4,861 HKD
€590 EUR
View
8 more retailers have this diamond
Prices start from HK$2,764 HKDSave up to HK$2,097 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.

B+
0.31ct Marquise
HK$2,764 HKD