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Round|Natural|GIA

0.50ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2554729446

Certificate GIA 2554729446

Diamond specifications and retailer prices

From $839 NZD
As of November 6, 2026
Save $2,939 NZD (78%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $3,777 NZD at NZ Jewellers · As of November 6, 2026
View at NZ Jewellers

About this 0.5ct natural round diamond

This 0.5ct 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 2554729446. Listed at 24 retailers as of November 6, 2026, with prices from $839 to $3,777, a $2,939 spread on the same certified stone. NZ Jewellers lists it at $3,777. 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

0.50
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554729446
Dimensions5.10 × 5.14 × 3.13 mm
L/W Ratio1.01
Culet sizeNone
Key to symbols
Crystal
Top View
5.10 mm5.14 mm0.50 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554729446
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 61.1%

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: $1,685 NZD|Low: $763 NZD|High: $2,814 NZD|Avg: $1,603 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
November 7, 2026
Retailer 2$839 NZD
Retailer 4$1,136 NZD
Retailer 5$1,360 NZD
Retailer 8$1,396 NZD
Retailer 12$1,434 NZD
Retailer 10$1,458 NZD
Retailer 6$1,602 NZD
Retailer 1$1,685 NZD
Retailer 7$1,687 NZD
Retailer 3$1,809 NZD
Retailer 11$1,858 NZD
Retailer 9$2,767 NZD

42 data points across 12 retailers

24 retailers$839 NZD to $3,777 NZD

A
Cheapest Retailer
-
$839 NZD
Final sale: no returns
A
Retailer 2
-
$1,091 NZD
View
Retailer 3
-
$1,118 NZD
View
Price last confirmed 44 days ago
A
Retailer 4
-
$1,126 NZD
View
A
Retailer 5
-
$1,136 NZD
View
B+
Retailer 6
-
$1,174 NZD
View
B+
Retailer 7
-
$1,174 NZD
View
B+
Retailer 8
-
$1,259 NZD
View
B+
Retailer 9
-
$1,292 NZD
View
B+
Retailer 10
-
$1,333 NZD
View
B+
Retailer 11
-
$1,360 NZD
View
B+
Retailer 12
-
$1,396 NZD
View
B
Retailer 13
-
$1,434 NZD
View
B+
Retailer 14
-
$1,440 NZD
View
B+
Retailer 15
-
$1,458 NZD
View
B+
Retailer 16
-
$1,524 NZD
View
B
Retailer 17
-
$1,602 NZD
View
B+
Retailer 18
-
$1,685 NZD
View
B+
Retailer 19
-
$1,687 NZD
View
Retailer 20
-
$1,809 NZD
View
Price last confirmed 34 days ago
B
Retailer 21
-
$1,858 NZD
View
B
Retailer 22
-
$2,767 NZD
View
B
Retailer 23
-
$3,456 NZD
View
Most Expensive
B
NZ Jewellers
d6b87b6a-990b-4855-acc4-3af8db5e6ec7 · Nov 6
$3,777 NZD
$2,094 USD
View
23 more retailers have this diamond
Prices start from $839 NZDSave up to $2,939 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
0.50ct Round
$839 NZD