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Round|Natural|GIA

0.55ct D SI1 Round Natural Diamond

EX • D/SI1 • GIA 6505827712

Certificate GIA 6505827712

Diamond specifications and retailer prices

From $960 AUD
As of November 6, 2026
Save $1,854 AUD (66%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,070 AUD at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 6505827712. Listed at 27 retailers as of November 5, 2026, with a 193% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6505827712
Dimensions5.25 × 5.22 × 3.28 mm
L/W Ratio1.01
Star length50%
Lower girdle75%
Top View
5.25 mm5.22 mm0.55 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6505827712
Side View
Table 56.0%Crown 34°Girdle: ThickPavilion 41.6°Culet: NoneDepth 62.7%

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: $960 AUD|Low: $960 AUD|High: $2,406 AUD|Avg: $1,559 AUD|-2.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 1$960 AUD
Retailer 3$1,197 AUD
Retailer 9$1,250 AUD
Retailer 11$1,299 AUD
Retailer 5$1,494 AUD
Retailer 2$1,521 AUD
Retailer 7$1,560 AUD
Retailer 4$1,670 AUD
Retailer 6$1,674 AUD
Retailer 8$2,003 AUD
Retailer 10$2,376 AUD

31 data points across 11 retailers

27 retailers$960 AUD to $2,814 AUD

A
Cheapest Retailer
-
$960 AUD
A
Retailer 2
-
$1,187 AUD
View
A
Retailer 3
-
$1,197 AUD
View
Final sale: no returns
A
Retailer 4
-
$1,250 AUD
View
Retailer 5
-
$1,299 AUD
View
Price last confirmed 8 days ago
Retailer 6
-
$1,299 AUD
View
Price last confirmed 20 days ago
Retailer 7
-
$1,299 AUD
View
Price last confirmed 39 days ago
Retailer 8
-
$1,299 AUD
View
Price last confirmed 21 days ago
B+
Retailer 9
-
$1,299 AUD
View
B+
Retailer 10
-
$1,313 AUD
View
Retailer 11
-
$1,347 AUD
View
Price last confirmed 22 days ago
B+
Retailer 12
-
$1,390 AUD
View
B+
Retailer 13
-
$1,487 AUD
View
B+
Retailer 14
-
$1,494 AUD
View
Retailer 15
-
$1,497 AUD
View
Price last confirmed 40 days ago
B+
Retailer 16
-
$1,497 AUD
View
B+
Retailer 17
-
$1,521 AUD
View
B+
Retailer 18
-
$1,560 AUD
View
B+
Retailer 19
-
$1,670 AUD
View
B+
Retailer 20
-
$1,674 AUD
View
Retailer 21
-
$1,951 AUD
View
Price last confirmed 32 days ago
B+
Retailer 22
-
$2,003 AUD
View
B
Retailer 23
-
$2,376 AUD
View
B
Retailer 24
-
$2,814 AUD
View
Retailer 25
-
$4,070 AUD
View
Price last confirmed 43 days ago
Retailer 26
-
$4,070 AUD
View
Price last confirmed 20 days ago
Most Expensive
NZ Jewellers
069e317e-d3f5-48cb-a98f-0d0638402bf8 · Oct 30
$4,070 AUD
$2,849 USD
View
Price last confirmed 7 days ago
26 more retailers have this diamond
Prices start from $960 AUDSave up to $1,854 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
$960 AUD