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Round|Natural|GIA

1.51ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 6531904444

Certificate GIA 6531904444

Diamond specifications and retailer prices

From €2,246 EUR
As of November 6, 2026
Save €3,076 EUR (58%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €5,323 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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6531904444. Listed at 14 retailers as of November 5, 2026, with prices from €2,246 to €5,323, a €3,076 spread on the same certified stone. NZ Jewellers lists it at €5,323. 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
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6531904444
Dimensions7.28 × 7.24 × 4.56 mm
L/W Ratio1.01
Top View
7.28 mm7.24 mm1.51 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 6531904444
Side View
Table 57.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°Culet: NoneDepth 62.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: €5,323 EUR|Low: €2,224 EUR|High: €5,323 EUR|Avg: €3,354 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
Retailer 15
November 6, 2026
Retailer 12€2,246 EUR
Retailer 10€2,267 EUR
Retailer 13€2,464 EUR
Retailer 5€2,712 EUR
Retailer 14€2,762 EUR
Retailer 6€2,854 EUR
Retailer 8€2,917 EUR
Retailer 4€3,055 EUR
Retailer 2€3,128 EUR
Retailer 3€3,173 EUR
Retailer 7€3,525 EUR
Retailer 9€3,549 EUR
Retailer 15€4,104 EUR
Retailer 11€5,110 EUR
NZ Jewellers€5,323 EUR

42 data points across 15 retailers

14 retailers€2,246 EUR to €5,323 EUR

A
Cheapest Retailer
-
€2,246 EUR
A
Retailer 2
-
€2,267 EUR
View
A
Retailer 3
-
€2,464 EUR
View
A
Retailer 4
-
€2,712 EUR
View
A
Retailer 5
-
€2,762 EUR
View
A
Retailer 6
-
€2,854 EUR
View
A
Retailer 7
-
€2,917 EUR
View
Retailer 8
-
€3,055 EUR
View
Price last confirmed 8 days ago
B+
Retailer 9
-
€3,128 EUR
View
B+
Retailer 10
-
€3,173 EUR
View
B+
Retailer 11
-
€3,525 EUR
View
B+
Retailer 12
-
€3,549 EUR
View
B
Retailer 13
-
€5,110 EUR
View
Most Expensive
B
NZ Jewellers
b756b306-6707-490a-93b1-43e155f92c84 · Nov 5
€5,323 EUR
$5,974 USD
View
13 more retailers have this diamond
Prices start from €2,246 EURSave up to €3,076 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
€2,246 EUR