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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 $626 NZD
SGD 476 SGD
As of November 2, 2026
Save $475 NZD (43%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $1,101 NZD 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 $626 to $1,101, a $475 spread on the same certified stone. Yorxs lists it at $1,101. 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: $827 NZD|Low: $626 NZD|High: $1,101 NZD|Avg: $828 NZD|+4.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Yorxs
November 3, 2026
Retailer 6$626 NZD
Retailer 4$727 NZD
Retailer 2$802 NZD
Retailer 5$812 NZD
Retailer 1$827 NZD
Retailer 3$874 NZD
Retailer 7$930 NZD
Yorxs$1,101 NZD

19 data points across 8 retailers

9 retailers$626 NZD to $1,101 NZD

B+
Cheapest Retailer
-
$626 NZD
SGD 476 SGD
B+
Retailer 2
-
$701 NZD
SGD 533 SGD
View
B+
Retailer 3
-
$727 NZD
$409 USD
View
B
Retailer 4
-
$802 NZD
£356 GBP
View
B
Retailer 5
-
$812 NZD
$457 USD
View
B+
Retailer 6
-
$827 NZD
£366 GBP
View
B
Retailer 7
-
$874 NZD
$492 USD
View
Retailer 8
-
$930 NZD
$523 USD
View
Price last confirmed 7 days ago
Most Expensive
B
Yorxs
621633242 · Nov 2
$1,101 NZD
€590 EUR
View
8 more retailers have this diamond
Prices start from $626 NZDSave up to $475 NZD

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
$626 NZD