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0.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 5523508612

Certificate GIA 5523508612

Diamond specifications and retailer prices

From $1,363 NZD
As of November 4, 2026
Save $3,745 NZD (73%) vs most expensive(unlock to see where)
25 retailers carry this diamond
Most expensive: $5,107 NZD at NZ Jewellers · As of November 4, 2026
View at NZ Jewellers

About this 0.51ct natural round diamond

This 0.51ct natural round sits in the half to three-quarter carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5523508612. Listed at 25 retailers as of November 4, 2026, with prices from $1,363 to $5,107, a $3,745 spread on the same certified stone. NZ Jewellers lists it at $5,107. 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

0.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 5523508612
Dimensions5.21 × 5.19 × 3.13 mm
L/W Ratio1.00
Top View
5.21 mm5.19 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5523508612
Side View
Table 58.0%Crown 31.5°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 4
Current: $2,364 NZD|Low: $1,363 NZD|High: $3,716 NZD|Avg: $2,220 NZD|-1.7%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 2$1,363 NZD
Retailer 6$1,432 NZD
Retailer 9$1,475 NZD
Retailer 10$1,710 NZD
Retailer 3$1,875 NZD
Retailer 4$2,044 NZD
Retailer 5$2,281 NZD
Retailer 1$2,364 NZD
Retailer 7$2,980 NZD
Retailer 8$3,704 NZD

35 data points across 10 retailers

25 retailers$1,363 NZD to $5,107 NZD

A
Cheapest Retailer
-
$1,363 NZD
Final sale: no returns
A
Retailer 2
-
$1,432 NZD
View
Retailer 3
-
$1,475 NZD
View
Price last confirmed 50 days ago
Retailer 4
-
$1,475 NZD
View
Price last confirmed 8 days ago
Retailer 5
-
$1,475 NZD
View
Price last confirmed 29 days ago
Retailer 6
-
$1,475 NZD
View
Price last confirmed 21 days ago
Retailer 7
-
$1,475 NZD
View
Price last confirmed 15 days ago
A
Retailer 8
-
$1,494 NZD
View
Retailer 9
-
$1,532 NZD
View
Price last confirmed 38 days ago
B+
Retailer 10
-
$1,658 NZD
View
Retailer 11
-
$1,702 NZD
View
Price last confirmed 45 days ago
Retailer 12
-
$1,702 NZD
View
Price last confirmed 28 days ago
Retailer 13
-
$1,702 NZD
View
Price last confirmed 17 days ago
B+
Retailer 14
-
$1,702 NZD
View
B+
Retailer 15
-
$1,710 NZD
View
B+
Retailer 16
-
$1,875 NZD
View
B+
Retailer 17
-
$2,044 NZD
View
B+
Retailer 18
-
$2,281 NZD
View
B+
Retailer 19
-
$2,364 NZD
View
B
Retailer 20
-
$2,980 NZD
View
Retailer 21
-
$3,704 NZD
View
Price last confirmed 9 days ago
Retailer 22
-
$5,107 NZD
View
Price last confirmed 43 days ago
Retailer 23
-
$5,107 NZD
View
Price last confirmed 46 days ago
Retailer 24
-
$5,107 NZD
View
Price last confirmed 17 days ago
Most Expensive
B
NZ Jewellers
98bdf900-743a-4c3e-a8a6-5cf944981c18 · Nov 4
$5,107 NZD
$2,871 USD
View
24 more retailers have this diamond
Prices start from $1,363 NZDSave up to $3,745 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
0.51ct Round
$1,363 NZD