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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 €2,693 EUR
HK$23,600 HKD
As of November 1, 2026
Save €3,628 EUR (57%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €6,321 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 €2,693 to €6,321, a €3,628 spread on the same certified stone. NZ Jewellers lists it at €6,321. 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
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: €6,321 EUR|Low: €2,670 EUR|High: €6,378 EUR|Avg: €3,950 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€2,693 EUR
Retailer 5€3,098 EUR
Retailer 7€3,201 EUR
Retailer 14€3,349 EUR
Retailer 4€3,401 EUR
Retailer 6€3,629 EUR
Retailer 11€3,629 EUR
Retailer 13€3,629 EUR
Retailer 2€3,689 EUR
Retailer 12€3,760 EUR
Retailer 8€4,088 EUR
Retailer 15€4,144 EUR
Retailer 3€4,187 EUR
Retailer 9€6,068 EUR
NZ Jewellers€6,321 EUR

33 data points across 15 retailers

17 retailers€2,693 EUR to €6,321 EUR

A
Cheapest Retailer
-
€2,693 EUR
HK$23,600 HKD
A
Retailer 2
-
€3,098 EUR
$3,475 USD
View
A
Retailer 3
-
€3,201 EUR
$3,590 USD
View
B+
Retailer 4
-
€3,349 EUR
$3,756 USD
View
Final sale: no returns
Retailer 5
-
€3,401 EUR
SGD 5,155 SGD
View
Price last confirmed 7 days ago
B+
Retailer 6
-
€3,453 EUR
A$5,958 AUD
View
Retailer 7
-
€3,480 EUR
$3,904 USD
View
Price last confirmed 105 days ago
B+
Retailer 8
-
€3,629 EUR
$4,070 USD
View
B+
Retailer 9
-
€3,629 EUR
$4,070 USD
View
B+
Retailer 10
-
€3,629 EUR
$4,070 USD
View
B+
Retailer 11
-
€3,689 EUR
£3,258 GBP
View
B+
Retailer 12
-
€3,760 EUR
$4,217 USD
View
B+
Retailer 13
-
€4,088 EUR
View
B+
Retailer 14
-
€4,144 EUR
£3,660 GBP
View
B+
Retailer 15
-
€4,187 EUR
$4,696 USD
View
B
Retailer 16
-
€6,068 EUR
£5,359 GBP
View
Most Expensive
B
NZ Jewellers
a69f990f-567b-4bf7-a2aa-d4fef9127bd3 · Oct 30
€6,321 EUR
$7,090 USD
View
16 more retailers have this diamond
Prices start from €2,693 EURSave up to €3,628 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
€2,693 EUR