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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2225190395

Certificate GIA 2225190395

Diamond specifications and retailer prices

From $1,004 NZD
$566 USD
As of October 26, 2026
Save $1,829 NZD (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,407 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2225190395. Listed at 20 retailers as of October 26, 2026, with a 182% 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
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2225190395
Dimensions5.23 × 5.19 × 3.22 mm
L/W Ratio1.01
Key to symbols
Crystal, Cloud, Needle, Feather
Top View
5.23 mm5.19 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2225190395
Side View
Table 58.0%Crown 36°Girdle: Slightly ThickPavilion 40.6°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: Oct 26
Current: $1,432 NZD|Low: $916 NZD|High: $2,587 NZD|Avg: $1,403 NZD|+0.9%
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
Retailer 14
Retailer 15
Retailer 16
November 2, 2026
Retailer 12$1,004 NZD
Retailer 16$1,020 NZD
Retailer 6$1,127 NZD
Retailer 15$1,128 NZD
Retailer 2$1,192 NZD
Retailer 14$1,192 NZD
Retailer 13$1,329 NZD
Retailer 5$1,341 NZD
Retailer 3$1,348 NZD
Retailer 9$1,355 NZD
Retailer 1$1,432 NZD
Retailer 4$1,437 NZD
Retailer 7$1,506 NZD
Retailer 8$1,630 NZD
Retailer 10$1,708 NZD
Retailer 11$2,569 NZD

36 data points across 16 retailers

20 retailers$1,004 NZD to $2,833 NZD

A
Cheapest Retailer
-
$1,004 NZD
$566 USD
A
Retailer 2
-
$1,020 NZD
$575 USD
View
Final sale: no returns
Retailer 3
-
$1,086 NZD
$612 USD
View
Price last confirmed 48 days ago
A
Retailer 4
-
$1,127 NZD
$635 USD
View
A
Retailer 5
-
$1,128 NZD
SGD 859 SGD
View
Retailer 6
-
$1,192 NZD
$672 USD
View
Price last confirmed 8 days ago
A
Retailer 7
-
$1,192 NZD
$672 USD
View
Retailer 8
-
$1,253 NZD
$706 USD
View
Price last confirmed 49 days ago
A
Retailer 9
-
$1,329 NZD
£590 GBP
View
B+
Retailer 10
-
$1,341 NZD
$756 USD
View
B+
Retailer 11
-
$1,348 NZD
$760 USD
View
B+
Retailer 12
-
$1,355 NZD
£601 GBP
View
B+
Retailer 13
-
$1,432 NZD
£636 GBP
View
B+
Retailer 14
-
$1,437 NZD
$810 USD
View
B+
Retailer 15
-
$1,506 NZD
$849 USD
View
Retailer 16
-
$1,630 NZD
A$1,414 AUD
View
Price last confirmed 28 days ago
B+
Retailer 17
-
$1,708 NZD
ZAR 15,555 ZAR
View
B
Retailer 18
-
$2,569 NZD
£1,140 GBP
View
B
Retailer 19
-
$2,833 NZD
£1,257 GBP
View
Most Expensive
NZ Jewellers
03ddd43e-3800-4c6a-a3d6-3159a1065b64 · Sep 15
$3,407 NZD
$1,920 USD
View
Price last confirmed 48 days ago
19 more retailers have this diamond
Prices start from $1,004 NZDSave up to $1,829 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
$1,004 NZD