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Round|Natural|GIA

5.53ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 2225867942

Certificate GIA 2225867942

Diamond specifications and retailer prices

From $81,434 AUD
As of November 6, 2026
Save $59,679 AUD (42%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $141,114 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 5.53ct natural round diamond

This 5.53ct natural round sits in the over five carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225867942. Listed at 16 retailers as of November 4, 2026, with prices from $81,434 to $141,114, a $59,679 spread on the same certified stone. MOH London lists it at $141,114. 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

5.53
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.4°
OriginNatural
Grading LabGIA
CertificateGIA 2225867942
Dimensions11.33 × 11.25 × 7.01 mm
L/W Ratio1.01
Key to symbols
Cloud, Feather, Crystal, Needle
Top View
11.33 mm11.25 mm5.53 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2225867942
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.4°Culet: NoneDepth 62.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $141,114 AUD|Low: $81,434 AUD|High: $143,198 AUD|Avg: $100,660 AUD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 10$81,434 AUD
Retailer 5$89,174 AUD
Retailer 3$89,793 AUD
Retailer 8$90,598 AUD
Retailer 2$91,520 AUD
Retailer 7$94,372 AUD
Retailer 9$94,372 AUD
Retailer 6$98,148 AUD
Retailer 11$101,922 AUD
Retailer 4$108,860 AUD
MOH London$141,114 AUD

35 data points across 11 retailers

16 retailers$81,434 AUD to $141,114 AUD

Retailer 1
-
$80,006 AUD
Price last confirmed 9 days ago
A
Retailer 2
-
$81,434 AUD
View
A
Retailer 3
-
$82,104 AUD
View
Retailer 4
-
$82,377 AUD
View
Price last confirmed 58 days ago
A
Retailer 5
-
$87,653 AUD
View
A
Retailer 6
-
$89,174 AUD
View
B+
Retailer 7
-
$89,793 AUD
View
Retailer 8
-
$90,598 AUD
View
Price last confirmed 8 days ago
A
Retailer 9
-
$91,520 AUD
View
B+
Retailer 10
-
$94,372 AUD
View
B+
Retailer 11
-
$94,372 AUD
View
B+
Retailer 12
-
$96,919 AUD
View
B+
Retailer 13
-
$98,148 AUD
View
B+
Retailer 14
-
$101,922 AUD
View
B+
Retailer 15
-
$108,860 AUD
View
Most Expensive
B
MOH London
AE05FB083 · Nov 4
$141,114 AUD
£77,783 GBP
View
15 more retailers have this diamond
Prices start from $81,434 AUDSave up to $59,679 AUD

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
5.53ct Round
$81,434 AUD