Round|Natural|GIA

0.55ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6421533302

Certificate GIA 6421533302

Diamond specifications and retailer prices

From $965 NZD
As of November 6, 2026
Save $2,320 NZD (71%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $4,109 NZD at NZ Jewellers · As of September 15, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6421533302. Listed at 17 retailers as of November 6, 2026, with a 240% 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6421533302
Dimensions5.22 × 5.18 × 3.26 mm
L/W Ratio1.01
Top View
5.22 mm5.18 mm0.55 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6421533302
Side View
Table 59.0%Crown 34.5°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.7%

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: $965 NZD|Low: $833 NZD|High: $2,428 NZD|Avg: $1,521 NZD|-2.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 1$965 NZD
Retailer 7$1,209 NZD
Retailer 5$1,290 NZD
Retailer 3$1,548 NZD
Retailer 4$1,591 NZD
Retailer 2$1,694 NZD
Retailer 6$2,399 NZD

43 data points across 7 retailers

17 retailers$965 NZD to $3,285 NZD

A
Cheapest Retailer
-
$965 NZD
A
Retailer 2
-
$1,169 NZD
View
A
Retailer 3
-
$1,209 NZD
View
Final sale: no returns
A
Retailer 4
-
$1,234 NZD
View
B+
Retailer 5
-
$1,290 NZD
View
Retailer 6
-
$1,311 NZD
View
Price last confirmed 53 days ago
Retailer 7
-
$1,311 NZD
View
Price last confirmed 21 days ago
Retailer 8
-
$1,360 NZD
View
Price last confirmed 22 days ago
B+
Retailer 9
-
$1,477 NZD
View
Retailer 10
-
$1,512 NZD
View
Price last confirmed 53 days ago
B+
Retailer 11
-
$1,548 NZD
View
B+
Retailer 12
-
$1,548 NZD
View
B+
Retailer 13
-
$1,591 NZD
View
B+
Retailer 14
-
$1,694 NZD
View
B
Retailer 15
-
$2,399 NZD
View
B
Retailer 16
-
$3,285 NZD
View
Most Expensive
NZ Jewellers
44670bad-dd18-4c05-89e9-2ef39dd2ad25 · Sep 15
$4,109 NZD
$2,278 USD
View
Price last confirmed 52 days ago
16 more retailers have this diamond
Prices start from $965 NZDSave up to $2,320 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
$965 NZD