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Round|Natural|GIA

0.55ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 3555670529

Certificate GIA 3555670529

Diamond specifications and retailer prices

From $924 NZD
As of November 6, 2026
Save $2,877 NZD (76%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $4,138 NZD at NZ Jewellers · As of October 17, 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 I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 3555670529. Listed at 24 retailers as of November 5, 2026, with a 312% 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 3555670529
Dimensions5.19 × 5.23 × 3.24 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Twinning Wisp, Cloud
Top View
5.19 mm5.23 mm0.55 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 3555670529
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.1%

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: Nov 6
Current: $1,591 NZD|Low: $924 NZD|High: $2,446 NZD|Avg: $1,726 NZD
Retailer 1
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 7, 2026
Retailer 3$924 NZD
Retailer 5$1,479 NZD
Retailer 6$1,490 NZD
Retailer 2$1,524 NZD
Retailer 10$1,524 NZD
Retailer 12$1,559 NZD
Retailer 1$1,591 NZD
Retailer 7$1,699 NZD
Retailer 9$1,708 NZD
Retailer 8$1,842 NZD
Retailer 4$1,984 NZD
Retailer 13$2,037 NZD
Retailer 11$2,403 NZD

44 data points across 13 retailers

24 retailers$924 NZD to $3,801 NZD

A
Cheapest Retailer
-
$924 NZD
Final sale: no returns
Retailer 2
-
$1,173 NZD
View
Price last confirmed 18 days ago
A
Retailer 3
-
$1,196 NZD
View
Retailer 4
-
$1,196 NZD
View
Price last confirmed 68 days ago
A
Retailer 5
-
$1,225 NZD
View
A
Retailer 6
-
$1,241 NZD
View
Retailer 7
-
$1,380 NZD
View
Price last confirmed 46 days ago
B+
Retailer 8
-
$1,391 NZD
View
B+
Retailer 9
-
$1,467 NZD
View
B+
Retailer 10
-
$1,490 NZD
View
B+
Retailer 11
-
$1,524 NZD
View
B+
Retailer 12
-
$1,524 NZD
View
B+
Retailer 13
-
$1,559 NZD
View
B+
Retailer 14
-
$1,584 NZD
View
B+
Retailer 15
-
$1,591 NZD
View
B+
Retailer 16
-
$1,678 NZD
View
B+
Retailer 17
-
$1,699 NZD
View
B+
Retailer 18
-
$1,708 NZD
View
B+
Retailer 19
-
$1,842 NZD
View
Retailer 20
-
$1,984 NZD
View
Price last confirmed 34 days ago
B
Retailer 21
-
$2,037 NZD
View
B
Retailer 22
-
$2,403 NZD
View
B
Retailer 23
-
$3,801 NZD
View
Most Expensive
NZ Jewellers
67698757-780f-404d-855a-2be4db3f102c · Oct 17
$4,138 NZD
$2,294 USD
View
Price last confirmed 21 days ago
23 more retailers have this diamond
Prices start from $924 NZDSave up to $2,877 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
$924 NZD