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Round|Natural|GIA

1.25ct K I1 Round Natural Diamond

EX • K/I1 • GIA 1555077138

Certificate GIA 1555077138

Diamond specifications and retailer prices

From €1,408 EUR
As of November 4, 2026
Save €2,360 EUR (63%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: €3,768 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.25ct natural round diamond

This 1.25ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and I1 clarity (included), with a top-tier cut grade and certified by GIA 1555077138. Listed at 7 retailers as of November 4, 2026, with prices from €1,408 to €3,768, a €2,360 spread on the same certified stone. NZ Jewellers lists it at €3,768. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.25
Carat
K
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1555077138
Dimensions6.81 × 6.87 × 4.28 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Feather, Crystal, Cloud, Cavity, Needle, Indented Natural
Top View
6.81 mm6.87 mm1.25 ctK / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1555077138
Side View
Table 58.0%Crown 36°GirdlePavilion 40.8°Culet: NoneDepth 62.6%

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 4
Current: €3,768 EUR|Low: €1,408 EUR|High: €4,081 EUR|Avg: €2,082 EUR|-6.8%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 6€1,408 EUR
Retailer 3€1,545 EUR
Retailer 5€1,545 EUR
Retailer 4€1,616 EUR
Retailer 7€1,783 EUR
Retailer 8€2,028 EUR
Retailer 2€2,097 EUR
NZ Jewellers€3,768 EUR

35 data points across 8 retailers

7 retailers€1,408 EUR to €3,768 EUR

A
Cheapest Retailer
-
€1,408 EUR
A
Retailer 2
-
€1,545 EUR
View
Retailer 3
-
€1,545 EUR
View
Price last confirmed 8 days ago
A
Retailer 4
-
€1,616 EUR
View
B+
Retailer 5
-
€1,783 EUR
View
B+
Retailer 6
-
€2,097 EUR
View
Most Expensive
B
NZ Jewellers
9108a912-095e-4554-9121-00f206802627 · Nov 5
€3,768 EUR
$4,229 USD
View
6 more retailers have this diamond
Prices start from €1,408 EURSave up to €2,360 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
1.25ct Round
€1,408 EUR