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Round|Natural|GIA

5.55ct K SI1 Round Natural Diamond

EX • K/SI1 • GIA 7531937422

Certificate GIA 7531937422

Diamond specifications and retailer prices

From $83,520 AUD
As of November 6, 2026
Save $62,626 AUD (43%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $146,146 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 5.55ct natural round diamond

This 5.55ct 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 7531937422. Listed at 16 retailers as of November 4, 2026, with prices from $83,520 to $146,146, a $62,626 spread on the same certified stone. MOH London lists it at $146,146. 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

5.55
Carat
K
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 7531937422
Dimensions11.29 × 11.22 × 7.05 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Feather, Needle
Top View
11.29 mm11.22 mm5.55 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7531937422
Side View
Table 56.0%CrownGirdlePavilionCulet: 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 6
Current: $146,146 AUD|Low: $83,520 AUD|High: $155,954 AUD|Avg: $107,793 AUD|-6.3%
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 3$83,520 AUD
Retailer 9$85,030 AUD
Retailer 7$90,767 AUD
Retailer 5$91,810 AUD
Retailer 10$93,828 AUD
Retailer 8$94,611 AUD
Retailer 2$94,784 AUD
Retailer 11$100,378 AUD
Retailer 4$112,743 AUD
Retailer 6$112,961 AUD
MOH London$146,146 AUD

38 data points across 11 retailers

16 retailers$83,520 AUD to $146,146 AUD

A
Cheapest Retailer
-
$83,520 AUD
A
Retailer 2
-
$85,030 AUD
View
A
Retailer 3
-
$90,767 AUD
View
A
Retailer 4
-
$91,810 AUD
View
Retailer 5
-
$93,828 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$94,611 AUD
View
Price last confirmed 9 days ago
B+
Retailer 7
-
$94,784 AUD
View
Retailer 8
-
$98,668 AUD
View
Price last confirmed 29 days ago
B+
Retailer 9
-
$100,378 AUD
View
Retailer 10
-
$102,779 AUD
View
Price last confirmed 40 days ago
Retailer 11
-
$102,779 AUD
View
Price last confirmed 38 days ago
Retailer 12
-
$106,890 AUD
View
Price last confirmed 29 days ago
Retailer 13
-
$111,002 AUD
View
Price last confirmed 38 days ago
B+
Retailer 14
-
$112,743 AUD
View
B+
Retailer 15
-
$112,961 AUD
View
Most Expensive
B
MOH London
627661A39 · Nov 4
$146,146 AUD
£80,557 GBP
View
15 more retailers have this diamond
Prices start from $83,520 AUDSave up to $62,626 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
5.55ct Round
$83,520 AUD