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Round|Natural|GIA

1.51ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2546595232

Certificate GIA 2546595232

Diamond specifications and retailer prices

From €2,645 EUR
As of November 6, 2026
Save €3,585 EUR (58%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: €6,230 EUR at NZ Jewellers · As of November 5, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2546595232. Listed at 15 retailers as of November 5, 2026, with prices from €2,645 to €6,230, a €3,585 spread on the same certified stone. NZ Jewellers lists it at €6,230. 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
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2546595232
Dimensions7.25 × 7.30 × 4.57 mm
L/W Ratio1.01
Top View
7.25 mm7.30 mm1.51 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2546595232
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 6
Current: €6,230 EUR|Low: €2,623 EUR|High: €6,275 EUR|Avg: €3,855 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
November 6, 2026
Retailer 11€2,645 EUR
Retailer 4€2,875 EUR
Retailer 5€3,043 EUR
Retailer 12€3,109 EUR
Retailer 3€3,239 EUR
Retailer 13€3,239 EUR
Retailer 14€3,364 EUR
Retailer 7€3,578 EUR
Retailer 6€3,738 EUR
Retailer 9€3,757 EUR
Retailer 2€3,893 EUR
Retailer 8€4,365 EUR
Retailer 10€5,979 EUR
NZ Jewellers€6,230 EUR

38 data points across 14 retailers

15 retailers€2,645 EUR to €6,230 EUR

A
Cheapest Retailer
-
€2,645 EUR
A
Retailer 2
-
€2,875 EUR
View
A
Retailer 3
-
€3,043 EUR
View
A
Retailer 4
-
€3,109 EUR
View
Retailer 5
-
€3,239 EUR
View
Price last confirmed 8 days ago
A
Retailer 6
-
€3,239 EUR
View
B+
Retailer 7
-
€3,364 EUR
View
B+
Retailer 8
-
€3,578 EUR
View
B+
Retailer 9
-
€3,738 EUR
View
B+
Retailer 10
-
€3,757 EUR
View
B+
Retailer 11
-
€3,893 EUR
View
Retailer 12
-
€4,195 EUR
View
Price last confirmed 14 days ago
B+
Retailer 13
-
€4,365 EUR
View
B
Retailer 14
-
€5,979 EUR
View
Most Expensive
B
NZ Jewellers
18b521fa-8fb0-499f-b2fe-e453b0e89815 · Nov 5
€6,230 EUR
$6,993 USD
View
14 more retailers have this diamond
Prices start from €2,645 EURSave up to €3,585 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
€2,645 EUR