CaratHunter
Plans
Marquise|Natural|GIA

0.31ct J SI1 Marquise Natural Diamond

GD • J/SI1 • GIA 2556929861

Certificate GIA 2556929861

Diamond specifications and retailer prices

From $298 AUD
$209 USD
As of November 1, 2026
Save $130 AUD (30%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: $428 AUD at 77 Diamonds · As of November 3, 2026
View at 77 Diamonds

About this 0.31ct natural marquise diamond

This 0.31ct natural marquise sits in the sub-half-carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 2556929861. Listed at 3 retailers as of November 1, 2026, with prices from $298 to $428, a $130 spread on the same certified stone. 77 Diamonds lists it at $428. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.31
Carat
J
Colour
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2556929861
Dimensions6.60 × 3.56 × 2.28 mm
L/W Ratio1.85
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Etch Channel
Top View
6.60 mm3.56 mm0.31 ctJ / SI1
OriginNatural
CutGood
PolishGood
SymmetryGood
FluorescenceNone
CertificateGIA 2556929861
Side View
Table 65.0%CrownGirdle: THN-ETKPavilionCulet: NoneDepth 64.0%

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 1
Current: $428 AUD|Low: $298 AUD|High: $432 AUD|Avg: $349 AUD|+3.6%
77 Diamonds
Retailer 2
Retailer 3
November 3, 2026
Retailer 2$298 AUD
Retailer 3$299 AUD
77 Diamonds$428 AUD

39 data points across 3 retailers

3 retailers$298 AUD to $428 AUD

B+
Cheapest Retailer
-
$298 AUD
$209 USD
Final sale: no returns
B+
Retailer 2
-
$299 AUD
SGD 283 SGD
View
Most Expensive
B
77 Diamonds
MQCPPFMHGQXS · Nov 3
$428 AUD
£236 GBP
View
2 more retailers have this diamond
Prices start from $298 AUDSave up to $130 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.

B+
0.31ct Marquise
$298 AUD