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Round|Natural|GIA

0.55ct J SI1 Round Natural Diamond

EX • J/SI1 • GIA 2556999425

Certificate GIA 2556999425

Diamond specifications and retailer prices

From $765 NZD
As of November 6, 2026
Save $2,520 NZD (77%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,285 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 2556999425. Listed at 16 retailers as of November 4, 2026, with prices from $765 to $3,285, a $2,520 spread on the same certified stone. NZ Jewellers lists it at $3,285. 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
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2556999425
Dimensions5.22 × 5.26 × 3.24 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
5.22 mm5.26 mm0.55 ctJ / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2556999425
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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: $765 NZD|Low: $657 NZD|High: $2,448 NZD|Avg: $1,298 NZD|-1.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$765 NZD
Retailer 5$965 NZD
Retailer 6$1,127 NZD
Retailer 7$1,209 NZD
Retailer 2$1,277 NZD
Retailer 3$1,391 NZD
Retailer 4$2,419 NZD

42 data points across 7 retailers

16 retailers$765 NZD to $3,285 NZD

A
Cheapest Retailer
-
$765 NZD
A
Retailer 2
-
$965 NZD
View
Final sale: no returns
Retailer 3
-
$1,048 NZD
View
Price last confirmed 44 days ago
Retailer 4
-
$1,048 NZD
View
Price last confirmed 60 days ago
B+
Retailer 5
-
$1,048 NZD
View
Retailer 6
-
$1,084 NZD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$1,127 NZD
View
Retailer 8
-
$1,209 NZD
View
Price last confirmed 60 days ago
Retailer 9
-
$1,209 NZD
View
Price last confirmed 45 days ago
B+
Retailer 10
-
$1,209 NZD
View
B+
Retailer 11
-
$1,277 NZD
View
B+
Retailer 12
-
$1,391 NZD
View
B
Retailer 13
-
$2,419 NZD
View
Retailer 14
-
$3,285 NZD
View
Price last confirmed 46 days ago
Retailer 15
-
$3,285 NZD
View
Price last confirmed 69 days ago
Most Expensive
B
NZ Jewellers
bbb91b0d-06a8-4b1f-942b-677ca9ea70bc · Nov 4
$3,285 NZD
$1,821 USD
View
15 more retailers have this diamond
Prices start from $765 NZDSave up to $2,520 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
$765 NZD