Round|Natural|GIA

1.54ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2558327820

Certificate GIA 2558327820

Diamond specifications and retailer prices

From €2,777 EUR
As of November 7, 2026
Save €2,141 EUR (44%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: €5,151 EUR at NZ Jewellers · As of October 3, 2026
View at NZ Jewellers

About this 1.54ct natural round diamond

This 1.54ct 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 2558327820. Listed at 11 retailers as of November 7, 2026, with a 77% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.54
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2558327820
Dimensions7.33 × 7.29 × 4.62 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Crystal, Feather, Cavity, Needle
Top View
7.33 mm7.29 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 2558327820
Side View
Table 57.0%Crown 36.5°GirdlePavilion 41°Culet: NoneDepth 63.1%

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 7
Current: €2,777 EUR|Low: €2,777 EUR|High: €5,070 EUR|Avg: €3,638 EUR
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 7, 2026
Retailer 1€2,777 EUR
Retailer 6€2,844 EUR
Retailer 3€3,041 EUR
Retailer 5€3,438 EUR
Retailer 4€3,609 EUR
Retailer 2€4,918 EUR

43 data points across 6 retailers

11 retailers€2,777 EUR to €4,918 EUR

A
Cheapest Retailer
-
€2,777 EUR
A
Retailer 2
-
€2,844 EUR
View
Retailer 3
-
€2,957 EUR
View
Price last confirmed 30 days ago
Retailer 4
-
€2,957 EUR
View
Price last confirmed 30 days ago
A
Retailer 5
-
€3,041 EUR
View
Retailer 6
-
€3,112 EUR
View
Price last confirmed 39 days ago
Retailer 7
-
€3,412 EUR
View
Price last confirmed 36 days ago
B+
Retailer 8
-
€3,438 EUR
View
B+
Retailer 9
-
€3,609 EUR
View
B
Retailer 10
-
€4,918 EUR
View
Most Expensive
NZ Jewellers
3179db4e-05ff-4f38-a2e9-7e98a5c48f4d · Oct 3
€5,151 EUR
$5,751 USD
View
Price last confirmed 35 days ago
10 more retailers have this diamond
Prices start from €2,777 EURSave up to €2,141 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
1.54ct Round
€2,777 EUR