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Round|Natural|GIA

0.55ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 2454893009

Certificate GIA 2454893009

Diamond specifications and retailer prices

From $1,022 NZD
₹54,775 INR
As of November 2, 2026
Save $2,702 NZD (73%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $4,308 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 2454893009. Listed at 23 retailers as of November 2, 2026, with a 264% 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 angle35.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2454893009
Dimensions5.21 × 5.17 × 3.26 mm
L/W Ratio1.01
Star length50%
Top View
5.21 mm5.17 mm0.55 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2454893009
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.8%

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 2
Current: $1,022 NZD|Low: $1,020 NZD|High: $2,546 NZD|Avg: $1,692 NZD|-1.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 1$1,022 NZD
Retailer 11$1,267 NZD
Retailer 8$1,374 NZD
Retailer 2$1,377 NZD
Retailer 9$1,625 NZD
Retailer 4$1,643 NZD
Retailer 10$1,680 NZD
Retailer 5$1,777 NZD
Retailer 3$2,066 NZD
Retailer 7$2,116 NZD
Retailer 6$2,517 NZD

36 data points across 11 retailers

23 retailers$1,022 NZD to $3,725 NZD

A
Cheapest Retailer
-
$1,022 NZD
₹54,775 INR
Retailer 2
-
$1,226 NZD
$690 USD
View
Price last confirmed 22 days ago
B+
Retailer 3
-
$1,267 NZD
$713 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,284 NZD
A$1,111 AUD
View
Retailer 5
-
$1,374 NZD
$773 USD
View
Price last confirmed 48 days ago
B+
Retailer 6
-
$1,374 NZD
$773 USD
View
Retailer 7
-
$1,374 NZD
$773 USD
View
Price last confirmed 17 days ago
B+
Retailer 8
-
$1,377 NZD
$775 USD
View
B+
Retailer 9
-
$1,395 NZD
$785 USD
View
Retailer 10
-
$1,427 NZD
$803 USD
View
Price last confirmed 18 days ago
B+
Retailer 11
-
$1,427 NZD
$803 USD
View
B+
Retailer 12
-
$1,527 NZD
$859 USD
View
Retailer 13
-
$1,585 NZD
$892 USD
View
Price last confirmed 49 days ago
B+
Retailer 14
-
$1,610 NZD
$906 USD
View
B+
Retailer 15
-
$1,625 NZD
£720 GBP
View
B+
Retailer 16
-
$1,643 NZD
£728 GBP
View
B
Retailer 17
-
$1,680 NZD
$945 USD
View
B+
Retailer 18
-
$1,777 NZD
€952 EUR
View
Retailer 19
-
$2,066 NZD
A$1,788 AUD
View
Price last confirmed 29 days ago
Retailer 20
-
$2,116 NZD
ZAR 19,231 ZAR
View
Price last confirmed 7 days ago
B
Retailer 21
-
$2,517 NZD
£1,115 GBP
View
B
Retailer 22
-
$3,725 NZD
£1,650 GBP
View
Most Expensive
NZ Jewellers
9f00f750-bed9-4676-a1ce-8fb98a8617b8 · Sep 15
$4,308 NZD
$2,424 USD
View
Price last confirmed 48 days ago
22 more retailers have this diamond
Prices start from $1,022 NZDSave up to $2,702 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
$1,022 NZD