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1.51ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 6501583878

Certificate GIA 6501583878

Diamond specifications and retailer prices

From €5,202 EUR
$5,835 USD
As of November 1, 2026
Save €5,889 EUR (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,091 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 GIA 6501583878. Listed at 18 retailers as of October 30, 2026, with prices from €5,202 to €11,091, a €5,889 spread on the same certified stone. NZ Jewellers lists it at €11,091. 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
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6501583878
Dimensions7.35 × 7.30 × 4.60 mm
L/W Ratio1.01
Top View
7.35 mm7.30 mm1.51 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6501583878
Side View
Table 57.0%Crown 33.5°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: €7,920 EUR|Low: €5,202 EUR|High: €9,353 EUR|Avg: €6,741 EUR|-0.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9€5,202 EUR
Retailer 11€5,240 EUR
Retailer 10€5,572 EUR
Retailer 2€6,100 EUR
Retailer 4€6,210 EUR
Retailer 3€6,359 EUR
Retailer 8€6,436 EUR
Retailer 6€7,214 EUR
Retailer 1€7,920 EUR
Retailer 7€8,148 EUR
Retailer 5€9,242 EUR

36 data points across 11 retailers

18 retailers€5,202 EUR to €11,091 EUR

B+
Cheapest Retailer
-
€5,202 EUR
$5,835 USD
B+
Retailer 2
-
€5,240 EUR
$5,877 USD
View
B
Retailer 3
-
€5,546 EUR
$6,220 USD
View
B
Retailer 4
-
€5,572 EUR
$6,250 USD
View
B
Retailer 5
-
€5,911 EUR
$6,630 USD
View
B
Retailer 6
-
€6,007 EUR
$6,738 USD
View
B
Retailer 7
-
€6,100 EUR
$6,842 USD
View
B
Retailer 8
-
€6,210 EUR
£5,485 GBP
View
B
Retailer 9
-
€6,359 EUR
$7,132 USD
View
Retailer 10
-
€6,436 EUR
A$11,106 AUD
View
Price last confirmed 11 days ago
Retailer 11
-
€6,932 EUR
$7,775 USD
View
Price last confirmed 56 days ago
B
Retailer 12
-
€6,932 EUR
$7,775 USD
View
B
Retailer 13
-
€7,214 EUR
View
Retailer 14
-
€7,307 EUR
$8,196 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
€7,920 EUR
£6,995 GBP
View
B
Retailer 16
-
€8,148 EUR
ZAR 147,633 ZAR
View
B
Retailer 17
-
€9,242 EUR
£8,162 GBP
View
Most Expensive
B
NZ Jewellers
f4d4f422-75b9-49b3-bb55-82b45c3d718f · Oct 30
€11,091 EUR
$12,440 USD
View
17 more retailers have this diamond
Prices start from €5,202 EURSave up to €5,889 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.

B+
1.51ct Round
€5,202 EUR