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Marquise|Natural|GIA

1.31ct I SI1 Marquise Natural Diamond

VG • I/SI1 • GIA 1558482456

Certificate GIA 1558482456

Diamond specifications and retailer prices

From $6,826 AUD
As of November 1, 2026
Save $2,433 AUD (26%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $9,259 AUD at Yorxs · As of November 6, 2026
View at Yorxs

About this 1.31ct natural marquise diamond

This 1.31ct natural marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1558482456. Listed at 2 retailers as of November 1, 2026, with prices from $6,826 to $9,259, a $2,433 spread on the same certified stone. Yorxs lists it at $9,259. 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

1.31
Carat
I
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558482456
Dimensions11.13 × 5.66 × 3.58 mm
L/W Ratio1.97
Girdle conditionFaceted
Culet sizeNone
Top View
11.13 mm5.66 mm1.31 ctI / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1558482456
Side View
Table 59.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.3%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 1
Current: $6,826 AUD|Low: $6,826 AUD|High: $9,302 AUD|Avg: $8,331 AUD
Retailer 1
Yorxs
November 6, 2026
Retailer 1$6,826 AUD
Yorxs$9,259 AUD

13 data points across 2 retailers

2 retailers$6,826 AUD to $9,259 AUD

B+
Cheapest Retailer
-
$6,826 AUD
Most Expensive
B
Yorxs
623717321 · Nov 6
$9,259 AUD
€6,059 EUR
View
1 more retailer has this diamond
Prices start from $6,826 AUDSave up to $2,433 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+
1.31ct Marquise
$6,826 AUD