CaratHunter
Plans
Round|Natural|GIA

0.55ct K SI2 Round Natural Diamond

EX • K/SI2 • GIA 1255439370

Certificate GIA 1255439370

Diamond specifications and retailer prices

From $1,073 NZD
As of November 4, 2026
Save $1,676 NZD (61%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $3,738 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 K colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1255439370. Listed at 10 retailers as of November 4, 2026, with a 156% 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
K
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1255439370
Dimensions5.26 × 5.23 × 3.26 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
5.26 mm5.23 mm0.55 ctK / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1255439370
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.2%

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 4
Current: $3,738 NZD|Low: $1,073 NZD|High: $3,738 NZD|Avg: $1,672 NZD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 3$1,073 NZD
Retailer 8$1,081 NZD
Retailer 6$1,124 NZD
Retailer 7$1,164 NZD
Retailer 10$1,164 NZD
Retailer 9$1,246 NZD
Retailer 2$1,447 NZD
Retailer 5$1,622 NZD
Retailer 4$2,749 NZD
NZ Jewellers$3,738 NZD

41 data points across 10 retailers

10 retailers$1,073 NZD to $2,749 NZD

A
Cheapest Retailer
-
$1,073 NZD
B+
Retailer 2
-
$1,081 NZD
View
B+
Retailer 3
-
$1,124 NZD
View
Retailer 4
-
$1,164 NZD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,164 NZD
View
B+
Retailer 6
-
$1,246 NZD
View
B
Retailer 7
-
$1,447 NZD
View
B
Retailer 8
-
$1,622 NZD
View
B
Retailer 9
-
$2,749 NZD
View
Most Expensive
NZ Jewellers
a4a68796-f60c-4280-b19c-15829ead3b87 · Nov 4
$3,738 NZD
$2,072 USD
View
Price under review
9 more retailers have this diamond
Prices start from $1,073 NZDSave up to $1,676 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
$1,073 NZD