Round|Natural|GIA

1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2225766939

Certificate GIA 2225766939

Diamond specifications and retailer prices

From €4,183 EUR
As of November 4, 2026
Save €3,560 EUR (46%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €8,815 EUR at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.53ct natural round diamond

This 1.53ct 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 2225766939. Listed at 9 retailers as of November 4, 2026, with a 85% 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

1.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2225766939
Dimensions7.37 × 7.32 × 4.57 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Key to symbols
Crystal, Feather
Top View
7.37 mm7.32 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceStrong
CertificateGIA 2225766939
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: €5,057 EUR|Low: €4,161 EUR|High: €7,858 EUR|Avg: €5,433 EUR|+0.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 5, 2026
Retailer 3€4,183 EUR
Retailer 5€4,217 EUR
Retailer 6€4,566 EUR
Retailer 1€5,057 EUR
Retailer 7€5,813 EUR
Retailer 4€6,475 EUR
Retailer 2€7,743 EUR

42 data points across 7 retailers

9 retailers€4,183 EUR to €7,743 EUR

B+
Cheapest Retailer
-
€4,183 EUR
B+
Retailer 2
-
€4,217 EUR
View
B+
Retailer 3
-
€4,565 EUR
View
B+
Retailer 4
-
€4,566 EUR
View
B+
Retailer 5
-
€5,057 EUR
View
Retailer 6
-
€5,813 EUR
View
Price last confirmed 14 days ago
B
Retailer 7
-
€6,475 EUR
View
B
Retailer 8
-
€7,743 EUR
View
Most Expensive
NZ Jewellers
44aba9e6-ac1d-4d15-8d51-6716819aa4bb · Oct 17
€8,815 EUR
$9,894 USD
View
Price last confirmed 20 days ago
8 more retailers have this diamond
Prices start from €4,183 EURSave up to €3,560 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.

B+
1.53ct Round
€4,183 EUR