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Marquise|Natural|GIA

0.31ct D SI1 Marquise Natural Diamond

EX • D/SI1 • GIA 7563399916

Certificate GIA 7563399916

Diamond specifications and retailer prices

From $464 AUD
$326 USD
As of November 1, 2026
Save $606 AUD (57%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $1,778 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded D 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 7563399916. Listed at 14 retailers as of November 1, 2026, with a 131% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 7563399916
Dimensions6.95 × 3.55 × 2.18 mm
L/W Ratio1.96
Girdle conditionFaceted
Key to symbols
Crystal, Feather
Top View
6.95 mm3.55 mm0.31 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 7563399916
Side View
Table 57.0%CrownGirdlePavilionCulet: NoneDepth 61.5%

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: Nov 1
Current: $1,778 AUD|Low: $464 AUD|High: $1,881 AUD|Avg: $783 AUD|-5.5%
NZ Jewellers
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 2, 2026
Retailer 3$464 AUD
Retailer 14$500 AUD
Retailer 13$517 AUD
Retailer 8$597 AUD
Retailer 11$621 AUD
Retailer 5$625 AUD
Retailer 12$636 AUD
Retailer 4$698 AUD
Retailer 10$719 AUD
Retailer 6$780 AUD
Retailer 7$867 AUD
Retailer 2$938 AUD
Retailer 9$1,070 AUD
NZ Jewellers$1,778 AUD

32 data points across 14 retailers

14 retailers$464 AUD to $1,070 AUD

A
Cheapest Retailer
-
$464 AUD
$326 USD
A
Retailer 2
-
$500 AUD
$351 USD
View
A
Retailer 3
-
$517 AUD
$363 USD
View
B+
Retailer 4
-
$597 AUD
£330 GBP
View
B+
Retailer 5
-
$621 AUD
$436 USD
View
B+
Retailer 6
-
$625 AUD
$439 USD
View
B+
Retailer 7
-
$636 AUD
£352 GBP
View
B+
Retailer 8
-
$698 AUD
$490 USD
View
B
Retailer 9
-
$719 AUD
ZAR 8,158 ZAR
View
Retailer 10
-
$780 AUD
View
Price last confirmed 33 days ago
B
Retailer 11
-
$867 AUD
€580 EUR
View
B
Retailer 12
-
$938 AUD
£519 GBP
View
B
Retailer 13
-
$1,070 AUD
£592 GBP
View
Most Expensive
NZ Jewellers
d1f10df9-ceaf-4280-bef8-7bb91d3f9a9e · Oct 30
$1,778 AUD
$1,249 USD
View
Price under review
13 more retailers have this diamond
Prices start from $464 AUDSave up to $606 AUD

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
0.31ct Marquise
$464 AUD