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Round|Natural|GIA

1.51ct J SI2 Round Natural Diamond

EX • J/SI2 • GIA 6442857890

Certificate GIA 6442857890

Diamond specifications and retailer prices

From €2,704 EUR
HK$23,600 HKD
As of November 1, 2026
Save €3,642 EUR (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €6,346 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6442857890. Listed at 17 retailers as of October 30, 2026, with prices from €2,704 to €6,346, a €3,642 spread on the same certified stone. NZ Jewellers lists it at €6,346. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6442857890
Dimensions7.47 × 7.44 × 4.53 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
7.47 mm7.44 mm1.51 ctJ / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6442857890
Side View
Table 59.0%Crown 32°Girdle: MED-NULPavilion 41.8°Culet: NoneDepth 60.8%

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: €6,346 EUR|Low: €2,681 EUR|High: €6,403 EUR|Avg: €3,965 EUR|-0.9%
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 10€2,704 EUR
Retailer 5€3,110 EUR
Retailer 7€3,213 EUR
Retailer 14€3,362 EUR
Retailer 4€3,414 EUR
Retailer 6€3,643 EUR
Retailer 11€3,643 EUR
Retailer 13€3,643 EUR
Retailer 2€3,703 EUR
Retailer 12€3,775 EUR
Retailer 8€4,104 EUR
Retailer 15€4,161 EUR
Retailer 3€4,203 EUR
Retailer 9€6,092 EUR
NZ Jewellers€6,346 EUR

33 data points across 15 retailers

17 retailers€2,704 EUR to €6,346 EUR

A
Cheapest Retailer
-
€2,704 EUR
HK$23,600 HKD
A
Retailer 2
-
€3,110 EUR
$3,475 USD
View
A
Retailer 3
-
€3,213 EUR
$3,590 USD
View
B+
Retailer 4
-
€3,362 EUR
$3,756 USD
View
Final sale: no returns
Retailer 5
-
€3,414 EUR
SGD 5,155 SGD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€3,466 EUR
A$5,958 AUD
View
Retailer 7
-
€3,494 EUR
$3,904 USD
View
Price last confirmed 105 days ago
B+
Retailer 8
-
€3,643 EUR
$4,070 USD
View
B+
Retailer 9
-
€3,643 EUR
$4,070 USD
View
B+
Retailer 10
-
€3,643 EUR
$4,070 USD
View
B+
Retailer 11
-
€3,703 EUR
£3,258 GBP
View
B+
Retailer 12
-
€3,775 EUR
$4,217 USD
View
B+
Retailer 13
-
€4,104 EUR
View
B+
Retailer 14
-
€4,161 EUR
£3,660 GBP
View
B+
Retailer 15
-
€4,203 EUR
$4,696 USD
View
B
Retailer 16
-
€6,092 EUR
£5,359 GBP
View
Most Expensive
B
NZ Jewellers
a69f990f-567b-4bf7-a2aa-d4fef9127bd3 · Oct 30
€6,346 EUR
$7,090 USD
View
16 more retailers have this diamond
Prices start from €2,704 EURSave up to €3,642 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
€2,704 EUR