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Round|Natural|GIA

1.31ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6531246335

Certificate GIA 6531246335

Diamond specifications and retailer prices

From €2,486 EUR
HK$21,700 HKD
As of November 1, 2026
Save €3,110 EUR (56%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: €5,596 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531246335. Listed at 24 retailers as of October 30, 2026, with prices from €2,486 to €5,596, a €3,110 spread on the same certified stone. NZ Jewellers lists it at €5,596. 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
I
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 6531246335
Dimensions6.95 × 6.91 × 4.34 mm
L/W Ratio1.01
Top View
6.95 mm6.91 mm1.31 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6531246335
Side View
Table 59.0%Crown 36°Girdle: STK-STKPavilion 41°Culet: NoneDepth 62.7%

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: Nov 1
Current: €5,596 EUR|Low: €2,463 EUR|High: €5,596 EUR|Avg: €3,411 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
November 1, 2026
Retailer 21€2,486 EUR
Retailer 2€2,494 EUR
Retailer 7€2,769 EUR
Retailer 4€2,851 EUR
Retailer 15€2,866 EUR
Retailer 6€2,965 EUR
Retailer 3€3,060 EUR
Retailer 9€3,088 EUR
Retailer 13€3,091 EUR
Retailer 22€3,181 EUR
Retailer 8€3,212 EUR
Retailer 12€3,212 EUR
Retailer 14€3,222 EUR
Retailer 10€3,336 EUR
Retailer 19€3,337 EUR
Retailer 5€3,342 EUR
Retailer 16€3,500 EUR
Retailer 18€3,642 EUR
Retailer 23€3,707 EUR
Retailer 20€3,948 EUR
Retailer 11€4,667 EUR
Retailer 17€5,372 EUR
NZ Jewellers€5,596 EUR

25 data points across 23 retailers

24 retailers€2,486 EUR to €5,596 EUR

A
Cheapest Retailer
-
€2,486 EUR
HK$21,700 HKD
A
Retailer 2
-
€2,494 EUR
₹265,322 INR
View
A
Retailer 3
-
€2,769 EUR
A$4,759 AUD
View
A
Retailer 4
-
€2,851 EUR
$3,185 USD
View
A
Retailer 5
-
€2,965 EUR
$3,312 USD
View
Final sale: no returns
A
Retailer 6
-
€3,060 EUR
$3,419 USD
View
A
Retailer 7
-
€3,088 EUR
$3,450 USD
View
A
Retailer 8
-
€3,091 EUR
£2,719 GBP
View
Retailer 9
-
€3,179 EUR
SGD 4,800 SGD
View
Price last confirmed 13 days ago
A
Retailer 10
-
€3,181 EUR
$3,554 USD
View
A
Retailer 11
-
€3,212 EUR
$3,589 USD
View
A
Retailer 12
-
€3,212 EUR
$3,589 USD
View
A
Retailer 13
-
€3,222 EUR
$3,600 USD
View
B+
Retailer 14
-
€3,336 EUR
$3,727 USD
View
A
Retailer 15
-
€3,337 EUR
£2,935 GBP
View
B+
Retailer 16
-
€3,342 EUR
$3,734 USD
View
Retailer 17
-
€3,500 EUR
A$6,015 AUD
View
Price last confirmed 23 days ago
B+
Retailer 18
-
€3,642 EUR
View
B+
Retailer 19
-
€3,707 EUR
$4,141 USD
View
B+
Retailer 20
-
€3,948 EUR
ZAR 71,261 ZAR
View
B
Retailer 21
-
€4,667 EUR
$5,214 USD
View
Retailer 22
-
€4,878 EUR
$5,450 USD
View
Price last confirmed 15 days ago
B
Retailer 23
-
€5,372 EUR
£4,726 GBP
View
Most Expensive
B
NZ Jewellers
2489d398-abfa-48ac-8047-ea7eccc10bf1 · Oct 30
€5,596 EUR
$6,252 USD
View
23 more retailers have this diamond
Prices start from €2,486 EURSave up to €3,110 EUR

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
€2,486 EUR