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Radiant|Natural|GIA

1.31ct D SI2 Radiant Natural Diamond

EX • D/SI2 • GIA 2231520847

Certificate GIA 2231520847

Diamond specifications and retailer prices

From $4,839 AUD
As of November 2, 2026
Save $3,689 AUD (43%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $8,529 AUD at NZ Jewellers · As of November 3, 2026
View at NZ Jewellers

About this 1.31ct natural radiant diamond

This 1.31ct natural radiant sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2231520847. Listed at 5 retailers as of November 2, 2026, with prices from $4,839 to $8,529, a $3,689 spread on the same certified stone. NZ Jewellers lists it at $8,529. 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

1.31
Carat
D
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle44.59°
Pavilion angle30.96°
OriginNatural
Grading LabGIA
CertificateGIA 2231520847
Dimensions6.89 × 5.40 × 3.76 mm
L/W Ratio1.28
Girdle conditionVery Thick
Key to symbols
Crystal
Top View
6.89 mm5.40 mm1.31 ctD / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2231520847
Side View
Table 64.0%Crown 44.59°GirdlePavilion 30.96°CuletDepth 69.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,529 AUD|Low: $4,838 AUD|High: $8,658 AUD|Avg: $6,065 AUD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 2$4,839 AUD
Retailer 4$4,896 AUD
Retailer 5$5,084 AUD
Retailer 9$5,378 AUD
Retailer 8$5,427 AUD
Retailer 6$5,710 AUD
Retailer 7$5,926 AUD
Retailer 3$8,185 AUD
NZ Jewellers$8,529 AUD

29 data points across 9 retailers

5 retailers$4,839 AUD to $8,529 AUD

A
Cheapest Retailer
-
$4,839 AUD
A
Retailer 2
-
$4,896 AUD
View
A
Retailer 3
-
$5,084 AUD
View
B+
Retailer 4
-
$8,185 AUD
View
Most Expensive
B+
NZ Jewellers
e79e7891-b18e-48e9-8fce-884b1ece3b41 · Nov 3
$8,529 AUD
$5,860 USD
View
4 more retailers have this diamond
Prices start from $4,839 AUDSave up to $3,689 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
1.31ct Radiant
$4,839 AUD