Round|Natural|GIA

1.31ct E IF Round Natural Diamond

EX • E/IF • GIA 6541520603

Certificate GIA 6541520603

Diamond specifications and retailer prices

From $12,331 USD
CA$17,126 CAD
As of October 22, 2026
Save $6,170 USD (33%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $20,504 USD 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
Color
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: $20,504 USD|Low: $11,970 USD|High: $20,641 USD|Avg: $15,581 USD|+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$12,331 USD
Retailer 5$12,514 USD
Retailer 6$14,131 USD
Retailer 3$14,214 USD
Retailer 8$14,236 USD
Retailer 9$15,818 USD
Retailer 2$16,360 USD
Retailer 4$18,501 USD
MOH London$20,504 USD

39 data points across 9 retailers

11 retailers$12,331 USD to $18,501 USD

A
Cheapest Retailer
-
$12,331 USD
CA$17,126 CAD
A
Retailer 2
-
$14,131 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
$14,214 USD
£11,192 GBP
View
A
Retailer 4
-
$14,236 USD
View
A
Retailer 5
-
$15,080 USD
View
Price last confirmed 7 days ago
A
Retailer 6
-
$15,080 USD
View
Price last confirmed 7 days ago
B+
Retailer 7
-
$15,580 USD
View
Price last confirmed 8 days ago
B+
Retailer 8
-
$15,818 USD
View
B+
Retailer 9
-
$16,360 USD
€15,581 EUR
View
B+
Retailer 10
-
$18,501 USD
View
Most Expensive
B+
MOH London
5CE57C728 · Oct 21
$20,504 USD
£16,145 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $12,331 USDSave up to $6,170 USD

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
$12,331 USD