CaratHunter
Plans
Round|Natural|IGI

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 €2,287 EUR
$2,565 USD
As of November 1, 2026
Save €3,050 EUR (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: €5,337 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 €2,287 to €5,337, a €3,050 spread on the same certified stone. NZ Jewellers lists it at €5,337. 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
Colour
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

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: €5,337 EUR|Low: €2,159 EUR|High: €5,337 EUR|Avg: €3,048 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€2,287 EUR
Retailer 14€2,356 EUR
Retailer 5€2,369 EUR
Retailer 3€2,501 EUR
Retailer 7€2,553 EUR
Retailer 4€2,651 EUR
Retailer 8€2,762 EUR
Retailer 13€2,801 EUR
Retailer 6€2,946 EUR
Retailer 9€2,975 EUR
Retailer 12€2,984 EUR
Retailer 2€3,049 EUR
Retailer 11€3,138 EUR
Retailer 10€4,269 EUR
NZ Jewellers€5,337 EUR

39 data points across 15 retailers

20 retailers€2,287 EUR to €5,337 EUR

A
Cheapest Retailer
-
€2,287 EUR
$2,565 USD
A
Retailer 2
-
€2,356 EUR
$2,642 USD
View
Final sale: no returns
A
Retailer 3
-
€2,369 EUR
$2,657 USD
View
Retailer 4
-
€2,433 EUR
$2,729 USD
View
Price last confirmed 84 days ago
A
Retailer 5
-
€2,501 EUR
$2,805 USD
View
Retailer 6
-
€2,553 EUR
$2,863 USD
View
Price last confirmed 38 days ago
A
Retailer 7
-
€2,553 EUR
$2,863 USD
View
A
Retailer 8
-
€2,651 EUR
$2,973 USD
View
A
Retailer 9
-
€2,679 EUR
$3,005 USD
View
A
Retailer 10
-
€2,762 EUR
£2,439 GBP
View
B+
Retailer 11
-
€2,801 EUR
$3,141 USD
View
B+
Retailer 12
-
€2,946 EUR
$3,304 USD
View
Retailer 13
-
€2,946 EUR
$3,304 USD
View
Price last confirmed 41 days ago
A
Retailer 14
-
€2,975 EUR
View
B+
Retailer 15
-
€2,984 EUR
£2,635 GBP
View
A
Retailer 16
-
€3,049 EUR
£2,693 GBP
View
A
Retailer 17
-
€3,138 EUR
ZAR 56,858 ZAR
View
B+
Retailer 18
-
€4,269 EUR
£3,770 GBP
View
Retailer 19
-
€5,337 EUR
$5,986 USD
View
Price last confirmed 38 days ago
Most Expensive
B
NZ Jewellers
d4139d59-90a1-44fe-8074-bf5e2509c708 · Oct 30
€5,337 EUR
$5,986 USD
View
19 more retailers have this diamond
Prices start from €2,287 EURSave up to €3,050 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
€2,287 EUR