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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 2566238867

Certificate GIA 2566238867

Diamond specifications and retailer prices

From $829 AUD
As of November 6, 2026
Save $1,205 AUD (59%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $2,034 AUD at MOH London · As of November 4, 2026
View at MOH London

About this 0.55ct natural round diamond

This 0.55ct natural round sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2566238867. Listed at 14 retailers as of November 4, 2026, with prices from $829 to $2,034, a $1,205 spread on the same certified stone. MOH London lists it at $2,034. 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

0.55
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2566238867
Dimensions5.22 × 5.25 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Cloud, Feather
Top View
5.22 mm5.25 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2566238867
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.8°Culet: NoneDepth 61.9%

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: $2,034 AUD|Low: $823 AUD|High: $2,046 AUD|Avg: $1,256 AUD|-0.6%
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
November 6, 2026
Retailer 2$829 AUD
Retailer 13$840 AUD
Retailer 4$1,026 AUD
Retailer 5$1,031 AUD
Retailer 14$1,053 AUD
Retailer 11$1,119 AUD
Retailer 8$1,164 AUD
Retailer 9$1,329 AUD
Retailer 10$1,341 AUD
Retailer 7$1,430 AUD
Retailer 6$1,466 AUD
Retailer 3$1,517 AUD
Retailer 12$1,573 AUD
MOH London$2,034 AUD

23 data points across 14 retailers

14 retailers$829 AUD to $2,034 AUD

A
Cheapest Retailer
-
$829 AUD
A
Retailer 2
-
$840 AUD
View
A
Retailer 3
-
$1,026 AUD
View
Final sale: no returns
Retailer 4
-
$1,031 AUD
View
Price last confirmed 15 days ago
A
Retailer 5
-
$1,046 AUD
View
Retailer 6
-
$1,053 AUD
View
Price last confirmed 15 days ago
A
Retailer 7
-
$1,119 AUD
View
A
Retailer 8
-
$1,164 AUD
View
B+
Retailer 9
-
$1,329 AUD
View
B+
Retailer 10
-
$1,341 AUD
View
B+
Retailer 11
-
$1,430 AUD
View
B+
Retailer 12
-
$1,517 AUD
View
B+
Retailer 13
-
$1,573 AUD
View
Most Expensive
B
MOH London
864694A57 · Nov 4
$2,034 AUD
£1,121 GBP
View
13 more retailers have this diamond
Prices start from $829 AUDSave up to $1,205 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
0.55ct Round
$829 AUD