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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 €5,223 EUR
$5,835 USD
As of November 1, 2026
Save €5,912 EUR (53%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: €11,135 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 €5,223 to €11,135, a €5,912 spread on the same certified stone. NZ Jewellers lists it at €11,135. 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
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: €6,235 EUR|Low: €5,223 EUR|High: €9,390 EUR|Avg: €6,766 EUR|-0.8%
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€5,223 EUR
Retailer 11€5,260 EUR
Retailer 10€5,594 EUR
Retailer 2€6,124 EUR
Retailer 1€6,235 EUR
Retailer 3€6,384 EUR
Retailer 8€6,462 EUR
Retailer 6€7,242 EUR
Retailer 4€7,952 EUR
Retailer 7€8,180 EUR
Retailer 5€9,278 EUR

36 data points across 11 retailers

18 retailers€5,223 EUR to €11,135 EUR

B+
Cheapest Retailer
-
€5,223 EUR
$5,835 USD
B+
Retailer 2
-
€5,260 EUR
$5,877 USD
View
B
Retailer 3
-
€5,567 EUR
$6,220 USD
View
B
Retailer 4
-
€5,594 EUR
$6,250 USD
View
B
Retailer 5
-
€5,934 EUR
$6,630 USD
View
B
Retailer 6
-
€6,031 EUR
$6,738 USD
View
B
Retailer 7
-
€6,124 EUR
$6,842 USD
View
B
Retailer 8
-
€6,235 EUR
£5,485 GBP
View
B
Retailer 9
-
€6,384 EUR
$7,132 USD
View
Retailer 10
-
€6,462 EUR
A$11,106 AUD
View
Price last confirmed 11 days ago
Retailer 11
-
€6,959 EUR
$7,775 USD
View
Price last confirmed 56 days ago
B
Retailer 12
-
€6,959 EUR
$7,775 USD
View
B
Retailer 13
-
€7,242 EUR
View
Retailer 14
-
€7,336 EUR
$8,196 USD
View
Price last confirmed 10 days ago
B
Retailer 15
-
€7,952 EUR
£6,995 GBP
View
B
Retailer 16
-
€8,180 EUR
ZAR 147,633 ZAR
View
B
Retailer 17
-
€9,278 EUR
£8,162 GBP
View
Most Expensive
B
NZ Jewellers
f4d4f422-75b9-49b3-bb55-82b45c3d718f · Oct 30
€11,135 EUR
$12,440 USD
View
17 more retailers have this diamond
Prices start from €5,223 EURSave up to €5,912 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
€5,223 EUR