Round|Natural|GIA

1.33ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2554658620

Certificate GIA 2554658620

Diamond specifications and retailer prices

From €2,264 EUR
As of November 4, 2026
Save €2,864 EUR (56%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €5,128 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.33ct natural round diamond

This 1.33ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2554658620. Listed at 6 retailers as of November 4, 2026, with prices from €2,264 to €5,128, a €2,864 spread on the same certified stone. NZ Jewellers lists it at €5,128. 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

1.33
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2554658620
Dimensions7.10 × 7.06 × 4.28 mm
L/W Ratio1.01
Star length50%
Culet sizeNone
Key to symbols
Cloud, Feather, Needle
Top View
7.10 mm7.06 mm1.33 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554658620
Side View
Table 60.0%Crown 32.5°Girdle: STK-STKPavilion 41°Culet: NoneDepth 60.4%

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: €5,128 EUR|Low: €2,264 EUR|High: €5,128 EUR|Avg: €3,427 EUR
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 5€2,264 EUR
Retailer 6€2,379 EUR
Retailer 3€2,868 EUR
Retailer 2€2,889 EUR
Retailer 4€4,297 EUR
NZ Jewellers€5,128 EUR

22 data points across 6 retailers

6 retailers€2,264 EUR to €5,128 EUR

A
Cheapest Retailer
-
€2,264 EUR
Final sale: no returns
B+
Retailer 2
-
€2,379 EUR
View
B+
Retailer 3
-
€2,868 EUR
View
B+
Retailer 4
-
€2,889 EUR
View
B
Retailer 5
-
€4,297 EUR
View
Most Expensive
B
NZ Jewellers
f633a713-e111-4162-8048-10e89e15cc81 · Nov 5
€5,128 EUR
$5,756 USD
View
5 more retailers have this diamond
Prices start from €2,264 EURSave up to €2,864 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
1.33ct Round
€2,264 EUR