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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2557450247

Certificate GIA 2557450247

Diamond specifications and retailer prices

From $935 NZD
$526 USD
As of October 31, 2026
Save $3,249 NZD (78%) vs most expensive(unlock to see where)
27 retailers carry this diamond
Most expensive: $4,184 NZD 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2557450247. Listed at 27 retailers as of October 30, 2026, with prices from $935 to $4,184, a $3,249 spread on the same certified stone. NZ Jewellers lists it at $4,184. 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 2557450247
Dimensions5.19 × 5.23 × 3.29 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Cloud
Top View
5.19 mm5.23 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2557450247
Side View
Table 56.0%Crown 36.5°Girdle: THN-MEDPavilion 41°Culet: NoneDepth 63.1%

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: Oct 31
Current: $4,184 NZD|Low: $850 NZD|High: $4,184 NZD|Avg: $1,766 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
November 2, 2026
Retailer 11$935 NZD
Retailer 5$1,185 NZD
Retailer 9$1,217 NZD
Retailer 13$1,255 NZD
Retailer 4$1,297 NZD
Retailer 3$1,411 NZD
Retailer 10$1,528 NZD
Retailer 2$1,594 NZD
Retailer 6$1,722 NZD
Retailer 12$2,006 NZD
Retailer 8$2,059 NZD
Retailer 7$2,445 NZD
NZ Jewellers$4,184 NZD

44 data points across 13 retailers

27 retailers$935 NZD to $4,184 NZD

A
Cheapest Retailer
-
$935 NZD
$526 USD
Final sale: no returns
Retailer 2
-
$1,185 NZD
$667 USD
View
Price last confirmed 22 days ago
A
Retailer 3
-
$1,209 NZD
$680 USD
View
Retailer 4
-
$1,209 NZD
$680 USD
View
Price last confirmed 48 days ago
A
Retailer 5
-
$1,217 NZD
$685 USD
View
A
Retailer 6
-
$1,237 NZD
$696 USD
View
A
Retailer 7
-
$1,251 NZD
A$1,083 AUD
View
A
Retailer 8
-
$1,255 NZD
$706 USD
View
B+
Retailer 9
-
$1,297 NZD
$730 USD
View
B+
Retailer 10
-
$1,395 NZD
$785 USD
View
B+
Retailer 11
-
$1,402 NZD
$789 USD
View
B+
Retailer 12
-
$1,411 NZD
$794 USD
View
B+
Retailer 13
-
$1,484 NZD
$835 USD
View
B+
Retailer 14
-
$1,528 NZD
$860 USD
View
B+
Retailer 15
-
$1,528 NZD
$860 USD
View
B+
Retailer 16
-
$1,528 NZD
$860 USD
View
B+
Retailer 17
-
$1,582 NZD
$890 USD
View
B+
Retailer 18
-
$1,594 NZD
£706 GBP
View
B+
Retailer 19
-
$1,604 NZD
$902 USD
View
B+
Retailer 20
-
$1,697 NZD
$955 USD
View
B+
Retailer 21
-
$1,722 NZD
€923 EUR
View
B+
Retailer 22
-
$1,867 NZD
$1,050 USD
View
Price last confirmed 7 days ago
Retailer 23
-
$2,006 NZD
A$1,737 AUD
View
Price last confirmed 29 days ago
B
Retailer 24
-
$2,059 NZD
ZAR 18,719 ZAR
View
B
Retailer 25
-
$2,445 NZD
£1,083 GBP
View
B
Retailer 26
-
$3,848 NZD
CA$3,007 CAD
View
Most Expensive
B
NZ Jewellers
9b665b45-e3d4-40e8-97cd-0319aba1d27e · Oct 30
$4,184 NZD
$2,354 USD
View
26 more retailers have this diamond
Prices start from $935 NZDSave up to $3,249 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
$935 NZD