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Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2308949230

Certificate GIA 2308949230

Diamond specifications and retailer prices

From $649 NZD
As of November 6, 2026
Save $2,309 NZD (78%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $2,958 NZD at NZ Jewellers · As of November 4, 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 J colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2308949230. Listed at 15 retailers as of November 4, 2026, with prices from $649 to $2,958, a $2,309 spread on the same certified stone. NZ Jewellers lists it at $2,958. 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
J
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2308949230
Dimensions5.24 × 5.27 × 3.28 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.24 mm5.27 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2308949230
Side View
Table 57.0%Crown 36°Girdle: MediumPavilion 41°Culet: NoneDepth 62.5%

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: $2,958 NZD|Low: $649 NZD|High: $2,958 NZD|Avg: $1,278 NZD
NZ Jewellers
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 6$649 NZD
Retailer 2$689 NZD
Retailer 13$943 NZD
Retailer 12$1,016 NZD
Retailer 14$1,016 NZD
Retailer 4$1,088 NZD
Retailer 5$1,088 NZD
Retailer 7$1,165 NZD
Retailer 8$1,268 NZD
Retailer 11$1,308 NZD
Retailer 3$1,319 NZD
Retailer 9$1,463 NZD
Retailer 10$2,176 NZD
NZ Jewellers$2,958 NZD

33 data points across 14 retailers

15 retailers$649 NZD to $2,958 NZD

A
Cheapest Retailer
-
$649 NZD
Final sale: no returns
A
Retailer 2
-
$689 NZD
View
A
Retailer 3
-
$943 NZD
View
Retailer 4
-
$1,016 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,016 NZD
View
B+
Retailer 6
-
$1,088 NZD
View
B+
Retailer 7
-
$1,088 NZD
View
B+
Retailer 8
-
$1,165 NZD
View
B+
Retailer 9
-
$1,268 NZD
View
B
Retailer 10
-
$1,308 NZD
View
B+
Retailer 11
-
$1,319 NZD
View
B+
Retailer 12
-
$1,463 NZD
View
Retailer 13
-
$1,472 NZD
View
Price last confirmed 33 days ago
B
Retailer 14
-
$2,176 NZD
View
Most Expensive
B
NZ Jewellers
8cfbbe36-69f1-4f47-a42c-a4d6403e2c2e · Nov 4
$2,958 NZD
$1,640 USD
View
14 more retailers have this diamond
Prices start from $649 NZDSave up to $2,309 NZD

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
$649 NZD