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Round|Natural|GIA

4.50ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 1545519911

Certificate GIA 1545519911

Diamond specifications and retailer prices

From €67,885 EUR
$75,842 USD
As of October 30, 2026
Save €43,014 EUR (39%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: €110,899 EUR at MOH London · As of November 1, 2026
View at MOH London

About this 4.5ct natural round diamond

This 4.5ct natural round sits in the three to five carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1545519911. Listed at 9 retailers as of October 30, 2026, with prices from €67,885 to €110,899, a €43,014 spread on the same certified stone. MOH London lists it at €110,899. 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

4.50
Carat
H
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle35.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 1545519911
Dimensions10.52 × 10.56 × 6.52 mm
L/W Ratio1.00
Girdle conditionFaceted
Key to symbols
Crystal, Feather, Needle
Top View
10.52 mm10.56 mm4.50 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1545519911
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 61.8%

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: Oct 30
Current: €110,899 EUR|Low: €67,885 EUR|High: €112,235 EUR|Avg: €79,103 EUR|-0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 2, 2026
Retailer 4€67,885 EUR
Retailer 5€68,268 EUR
Retailer 2€71,319 EUR
Retailer 8€71,348 EUR
Retailer 6€75,428 EUR
Retailer 7€78,329 EUR
Retailer 3€84,107 EUR
MOH London€110,899 EUR

38 data points across 8 retailers

9 retailers€67,885 EUR to €110,899 EUR

B+
Cheapest Retailer
-
€67,885 EUR
$75,842 USD
B+
Retailer 2
-
€68,268 EUR
$76,269 USD
View
B+
Retailer 3
-
€71,319 EUR
£62,738 GBP
View
B+
Retailer 4
-
€71,348 EUR
$79,710 USD
View
B
Retailer 5
-
€75,428 EUR
$84,269 USD
View
B
Retailer 6
-
€78,329 EUR
$87,510 USD
View
B
Retailer 7
-
€82,474 EUR
$92,140 USD
View
B
Retailer 8
-
€84,107 EUR
View
Most Expensive
B
MOH London
B4CE25EEE · Nov 1
€110,899 EUR
£97,557 GBP
View
8 more retailers have this diamond
Prices start from €67,885 EURSave up to €43,014 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+
4.50ct Round
€67,885 EUR