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Round|Natural|GIA

0.51ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 7548843175

Certificate GIA 7548843175

Diamond specifications and retailer prices

From $740 NZD
As of November 5, 2026
Save $2,393 NZD (76%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,133 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 7548843175. Listed at 15 retailers as of November 4, 2026, with prices from $740 to $3,133, a $2,393 spread on the same certified stone. NZ Jewellers lists it at $3,133. 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
FluorescenceFaint
Crown angle36.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7548843175
Dimensions5.08 × 5.10 × 3.19 mm
L/W Ratio1.00
Key to symbols
Crystal, Feather, Cloud
Top View
5.08 mm5.10 mm0.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7548843175
Side View
Table 57.0%Crown 36.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.7%

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 5
Current: $3,133 NZD|Low: $740 NZD|High: $3,179 NZD|Avg: $1,350 NZD|-1.5%
NZ Jewellers
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
November 6, 2026
Retailer 9$740 NZD
Retailer 5$797 NZD
Retailer 15$841 NZD
Retailer 4$998 NZD
Retailer 6$1,064 NZD
Retailer 14$1,076 NZD
Retailer 7$1,092 NZD
Retailer 13$1,153 NZD
Retailer 2$1,204 NZD
Retailer 3$1,233 NZD
Retailer 12$1,391 NZD
Retailer 8$1,448 NZD
Retailer 10$1,473 NZD
Retailer 11$2,304 NZD
NZ Jewellers$3,133 NZD

23 data points across 15 retailers

15 retailers$740 NZD to $3,133 NZD

A
Cheapest Retailer
-
$740 NZD
A
Retailer 2
-
$797 NZD
View
A
Retailer 3
-
$841 NZD
View
A
Retailer 4
-
$998 NZD
View
Retailer 5
-
$1,064 NZD
View
Price last confirmed 10 days ago
A
Retailer 6
-
$1,076 NZD
View
Retailer 7
-
$1,092 NZD
View
Price last confirmed 8 days ago
A
Retailer 8
-
$1,153 NZD
View
A
Retailer 9
-
$1,204 NZD
View
A
Retailer 10
-
$1,233 NZD
View
A
Retailer 11
-
$1,391 NZD
View
A
Retailer 12
-
$1,448 NZD
View
A
Retailer 13
-
$1,473 NZD
View
B+
Retailer 14
-
$2,304 NZD
View
Most Expensive
B
NZ Jewellers
af7a02a7-a6b1-4607-a4ea-14e3f6cbacf7 · Nov 4
$3,133 NZD
$1,761 USD
View
14 more retailers have this diamond
Prices start from $740 NZDSave up to $2,393 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
$740 NZD