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Round|Natural|GIA

1.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 6565303701

Certificate GIA 6565303701

Diamond specifications and retailer prices

From €2,931 EUR
As of November 4, 2026
Save €703 EUR (19%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: €3,634 EUR at Blue Nile · As of November 5, 2026
View at Blue Nile

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 6565303701. Listed at 6 retailers as of November 4, 2026, with prices from €2,931 to €3,634, a €703 spread on the same certified stone. Blue Nile lists it at €3,634. 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
FluorescenceMedium
Crown angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 6565303701
Dimensions7.32 × 7.36 × 4.59 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Feather, Crystal, Cloud, Needle, Indented Natural, Natural
Top View
7.32 mm7.36 mm1.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6565303701
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°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: €3,634 EUR|Low: €2,584 EUR|High: €3,634 EUR|Avg: €3,307 EUR|+0.7%
Blue Nile
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 6, 2026
Retailer 3€2,931 EUR
Retailer 5€3,117 EUR
Retailer 4€3,354 EUR
Retailer 6€3,549 EUR
Retailer 2€3,551 EUR
Blue Nile€3,634 EUR

26 data points across 6 retailers

6 retailers€2,931 EUR to €3,634 EUR

A
Cheapest Retailer
-
€2,931 EUR
A
Retailer 2
-
€3,117 EUR
View
Final sale: no returns
B+
Retailer 3
-
€3,354 EUR
View
B+
Retailer 4
-
€3,549 EUR
View
B+
Retailer 5
-
€3,551 EUR
View
Most Expensive
B+
Blue Nile
30420837 · Nov 5
€3,634 EUR
$4,079 USD
View
5 more retailers have this diamond
Prices start from €2,931 EURSave up to €703 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
1.53ct Round
€2,931 EUR