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Round|Natural|GIA

1.31ct E IF Round Natural Diamond

EX • E/IF • GIA 6541520603

Certificate GIA 6541520603

Diamond specifications and retailer prices

From $17,552 AUD
CA$17,126 CAD
As of October 22, 2026
Save $8,783 AUD (33%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $29,186 AUD at MOH London · As of October 21, 2026
View at MOH London

About this 1.31ct natural round diamond

This 1.31ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6541520603. Listed at 11 retailers as of October 22, 2026, with a 50% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.31
Carat
E
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6541520603
Dimensions6.92 × 6.96 × 4.34 mm
L/W Ratio1.01
Top View
6.92 mm6.96 mm1.31 ctE / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6541520603
Side View
Table 56.0%Crown 35.5°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.6%

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: Oct 22
Current: $29,186 AUD|Low: $17,038 AUD|High: $29,381 AUD|Avg: $22,177 AUD|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 24, 2026
Retailer 7$17,552 AUD
Retailer 5$17,812 AUD
Retailer 6$20,114 AUD
Retailer 3$20,232 AUD
Retailer 8$20,264 AUD
Retailer 9$22,515 AUD
Retailer 2$23,287 AUD
Retailer 4$26,334 AUD
MOH London$29,186 AUD

39 data points across 9 retailers

11 retailers$17,552 AUD to $26,334 AUD

A
Cheapest Retailer
-
$17,552 AUD
CA$17,126 CAD
A
Retailer 2
-
$20,114 AUD
$14,131 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$20,232 AUD
£11,192 GBP
View
A
Retailer 4
-
$20,264 AUD
$14,236 USD
View
A
Retailer 5
-
$21,465 AUD
$15,080 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$21,465 AUD
$15,080 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$22,177 AUD
$15,580 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$22,515 AUD
$15,818 USD
View
B+
Retailer 9
-
$23,287 AUD
€15,581 EUR
View
B+
Retailer 10
-
$26,334 AUD
$18,501 USD
View
Most Expensive
B+
MOH London
5CE57C728 · Oct 21
$29,186 AUD
£16,145 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $17,552 AUDSave up to $8,783 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 Round
$17,552 AUD