CaratHunter
Plans
Marquise|Natural|GIA

0.31ct F SI1 Marquise Natural Diamond

EX • F/SI1 • GIA 6565618991

Certificate GIA 6565618991

Diamond specifications and retailer prices

From €314 EUR
SGD 476 SGD
As of November 2, 2026
Save €238 EUR (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €552 EUR 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 €314 to €552, a €238 spread on the same certified stone. Yorxs lists it at €552. 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: €419 EUR|Low: €314 EUR|High: €552 EUR|Avg: €415 EUR|+5.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 2, 2026
Retailer 6€314 EUR
Retailer 4€365 EUR
Retailer 2€403 EUR
Retailer 5€407 EUR
Retailer 1€419 EUR
Retailer 3€439 EUR
Retailer 7€466 EUR
Yorxs€552 EUR

18 data points across 8 retailers

9 retailers€314 EUR to €552 EUR

B+
Cheapest Retailer
-
€314 EUR
SGD 476 SGD
B+
Retailer 2
-
€352 EUR
SGD 533 SGD
View
B+
Retailer 3
-
€365 EUR
$409 USD
View
B
Retailer 4
-
€403 EUR
£356 GBP
View
B
Retailer 5
-
€407 EUR
$457 USD
View
B
Retailer 6
-
€419 EUR
£370 GBP
View
B
Retailer 7
-
€439 EUR
$492 USD
View
B
Retailer 8
-
€466 EUR
$523 USD
View
Most Expensive
B
Yorxs
621633242 · Nov 2
€552 EUR
View
8 more retailers have this diamond
Prices start from €314 EURSave up to €238 EUR

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
€314 EUR