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1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • IGI 713545321

Shape and cutting style on the report: Round brilliant

Certificate IGI 713545321

Diamond specifications and retailer prices

From €2,296 EUR
$2,565 USD
As of November 1, 2026
Save €3,062 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €5,358 EUR at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 713545321. Listed at 20 retailers as of October 30, 2026, with prices from €2,296 to €5,358, a €3,062 spread on the same certified stone. NZ Jewellers lists it at €5,358. 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

1.51
Carat
J
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36.6°
Pavilion angle40.8°
OriginNatural
Grading LabIGI
CertificateIGI 713545321
Dimensions7.30 × 7.18 × 4.59 mm
L/W Ratio1.02
Girdle conditionPARTLY FACETED
Culet sizePointed
Top View
7.30 mm7.18 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI 713545321
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 63.2%

Caratlytics Score

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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 1
Current: €5,358 EUR|Low: €2,168 EUR|High: €5,358 EUR|Avg: €3,059 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
November 2, 2026
Retailer 15€2,296 EUR
Retailer 14€2,365 EUR
Retailer 5€2,378 EUR
Retailer 3€2,511 EUR
Retailer 7€2,563 EUR
Retailer 4€2,661 EUR
Retailer 2€2,773 EUR
Retailer 13€2,812 EUR
Retailer 6€2,957 EUR
Retailer 8€2,987 EUR
Retailer 12€2,995 EUR
Retailer 9€3,061 EUR
Retailer 11€3,150 EUR
Retailer 10€4,286 EUR
NZ Jewellers€5,358 EUR

39 data points across 15 retailers

20 retailers€2,296 EUR to €5,358 EUR

A
Cheapest Retailer
-
€2,296 EUR
$2,565 USD
A
Retailer 2
-
€2,365 EUR
$2,642 USD
View
Final sale: no returns
A
Retailer 3
-
€2,378 EUR
$2,657 USD
View
Retailer 4
-
€2,443 EUR
$2,729 USD
View
Price last confirmed 84 days ago
A
Retailer 5
-
€2,511 EUR
$2,805 USD
View
Retailer 6
-
€2,563 EUR
$2,863 USD
View
Price last confirmed 37 days ago
A
Retailer 7
-
€2,563 EUR
$2,863 USD
View
A
Retailer 8
-
€2,661 EUR
$2,973 USD
View
A
Retailer 9
-
€2,690 EUR
$3,005 USD
View
A
Retailer 10
-
€2,773 EUR
£2,439 GBP
View
B+
Retailer 11
-
€2,812 EUR
$3,141 USD
View
B+
Retailer 12
-
€2,957 EUR
$3,304 USD
View
Retailer 13
-
€2,957 EUR
$3,304 USD
View
Price last confirmed 41 days ago
A
Retailer 14
-
€2,987 EUR
View
B+
Retailer 15
-
€2,995 EUR
£2,635 GBP
View
A
Retailer 16
-
€3,061 EUR
£2,693 GBP
View
A
Retailer 17
-
€3,150 EUR
ZAR 56,858 ZAR
View
B+
Retailer 18
-
€4,286 EUR
£3,770 GBP
View
Retailer 19
-
€5,358 EUR
$5,986 USD
View
Price last confirmed 37 days ago
Most Expensive
B
NZ Jewellers
d4139d59-90a1-44fe-8074-bf5e2509c708 · Oct 30
€5,358 EUR
$5,986 USD
View
19 more retailers have this diamond
Prices start from €2,296 EURSave up to €3,062 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
1.51ct Round
€2,296 EUR