CaratHunter
Plans
Radiant|Natural|GIA

1.31ct E SI2 Radiant Natural Diamond

ID • E/SI2 • GIA 6512628280

Certificate GIA 6512628280

Diamond specifications and retailer prices

From $8,451 AUD
$5,937 USD
As of October 27, 2026
1 retailer carries this diamond
Only listing: $8,451 AUD at NZ Jewellers
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
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 E 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 6512628280. Listed at a single retailer as of October 27, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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
E
Colour
SI2
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle44.94°
Pavilion angle30.43°
OriginNatural
Grading LabGIA
CertificateGIA 6512628280
Dimensions6.89 × 5.35 × 3.71 mm
L/W Ratio1.29
Top View
6.89 mm5.35 mm1.31 ctE / SI2
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6512628280
Side View
Table 66.0%Crown 44.94°GirdlePavilion 30.43°CuletDepth 69.4%

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: Oct 27
Current: $8,451 AUD|Low: $5,062 AUD|High: $8,687 AUD|Avg: $6,527 AUD|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 24, 2026
Retailer 2$5,062 AUD
Retailer 5$5,436 AUD
Retailer 3$5,771 AUD
Retailer 4$5,920 AUD
Retailer 7$5,993 AUD
Retailer 6$6,403 AUD
NZ Jewellers$8,451 AUD
Retailer 8$8,687 AUD

7 data points across 8 retailers

1 retailer

B+
NZ Jewellers
a74028f4-0980-4106-aea2-700fe1d165ba · Oct 27
$8,451 AUD
$5,937 USD
View

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 Radiant
$8,451 AUD