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Round|Natural|GIA

5.55ct E SI1 Round Natural Diamond

EX • E/SI1 • GIA 6422968845

Certificate GIA 6422968845

Diamond specifications and retailer prices

From $163,113 AUD
$114,578 USD
As of October 28, 2026
Save $132,194 AUD (45%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $295,307 AUD at MOH London · As of October 29, 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 E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6422968845. Listed at 21 retailers as of October 28, 2026, with prices from $163,113 to $295,307, a $132,194 spread on the same certified stone. MOH London lists it at $295,307. 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
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6422968845
Dimensions11.33 × 11.25 × 7.00 mm
L/W Ratio1.01
Top View
11.33 mm11.25 mm5.55 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6422968845
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.0%

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: Oct 28
Current: $295,307 AUD|Low: $161,052 AUD|High: $297,272 AUD|Avg: $200,530 AUD|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
October 31, 2026
Retailer 3$161,052 AUD
Retailer 6$168,984 AUD
Retailer 12$171,302 AUD
Retailer 4$175,221 AUD
Retailer 2$181,777 AUD
Retailer 7$187,854 AUD
Retailer 5$188,077 AUD
Retailer 10$195,914 AUD
Retailer 14$195,914 AUD
Retailer 9$199,087 AUD
Retailer 11$203,751 AUD
Retailer 15$211,587 AUD
Retailer 8$222,329 AUD
Retailer 13$226,356 AUD
MOH London$295,307 AUD

29 data points across 15 retailers

21 retailers$163,113 AUD to $295,307 AUD

Retailer 1
-
$161,052 AUD
$113,130 USD
Price last confirmed 13 days ago
A
Retailer 2
-
$163,113 AUD
$114,578 USD
View
A
Retailer 3
-
$168,984 AUD
$118,702 USD
View
A
Retailer 4
-
$169,088 AUD
$118,775 USD
View
A
Retailer 5
-
$171,302 AUD
$120,330 USD
View
Retailer 6
-
$175,221 AUD
View
Price last confirmed 27 days ago
A
Retailer 7
-
$181,566 AUD
$127,540 USD
View
A
Retailer 8
-
$181,777 AUD
£100,542 GBP
View
B+
Retailer 9
-
$187,854 AUD
$131,957 USD
View
Retailer 10
-
$188,077 AUD
$132,114 USD
View
Price last confirmed 15 days ago
B+
Retailer 11
-
$193,382 AUD
$135,840 USD
View
B+
Retailer 12
-
$193,382 AUD
$135,840 USD
View
B+
Retailer 13
-
$195,914 AUD
$137,619 USD
View
B+
Retailer 14
-
$195,914 AUD
$137,619 USD
View
B+
Retailer 15
-
$199,087 AUD
£110,116 GBP
View
B+
Retailer 16
-
$199,831 AUD
$140,370 USD
View
B+
Retailer 17
-
$203,751 AUD
$143,124 USD
View
B+
Retailer 18
-
$211,587 AUD
$148,628 USD
View
B+
Retailer 19
-
$222,329 AUD
€148,737 EUR
View
B+
Retailer 20
-
$226,356 AUD
ZAR 2,568,705 ZAR
View
Most Expensive
B
MOH London
9258E094A · Oct 29
$295,307 AUD
£163,336 GBP
View
20 more retailers have this diamond
Prices start from $163,113 AUDSave up to $132,194 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
$163,113 AUD