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Round|Natural|GIA

0.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 7566014304

Certificate GIA 7566014304

Diamond specifications and retailer prices

From $907 AUD
As of November 4, 2026
Save $1,077 AUD (54%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $3,404 AUD at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7566014304. Listed at 15 retailers as of November 4, 2026, with a 119% 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

0.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 7566014304
Dimensions5.14 × 5.15 × 3.12 mm
L/W Ratio1.00
Culet sizeNone
Top View
5.14 mm5.15 mm0.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 7566014304
Side View
Table 59.0%Crown 33.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.7%

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 4
Current: $3,404 AUD|Low: $907 AUD|High: $3,404 AUD|Avg: $1,546 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 6, 2026
Retailer 4$907 AUD
Retailer 3$929 AUD
Retailer 12$983 AUD
Retailer 11$1,021 AUD
Retailer 10$1,134 AUD
Retailer 7$1,284 AUD
Retailer 5$1,379 AUD
Retailer 2$1,396 AUD
Retailer 6$1,530 AUD
Retailer 8$1,984 AUD
Retailer 9$2,793 AUD
NZ Jewellers$3,404 AUD

37 data points across 12 retailers

15 retailers$907 AUD to $1,984 AUD

A
Cheapest Retailer
-
$907 AUD
Final sale: no returns
A
Retailer 2
-
$929 AUD
View
A
Retailer 3
-
$966 AUD
View
Retailer 4
-
$983 AUD
View
Price last confirmed 8 days ago
B+
Retailer 5
-
$1,021 AUD
View
Retailer 6
-
$1,134 AUD
View
Price last confirmed 10 days ago
B+
Retailer 7
-
$1,137 AUD
View
B+
Retailer 8
-
$1,199 AUD
View
B
Retailer 9
-
$1,284 AUD
View
B+
Retailer 10
-
$1,379 AUD
View
B+
Retailer 11
-
$1,396 AUD
View
B
Retailer 12
-
$1,530 AUD
View
B
Retailer 13
-
$1,984 AUD
View
Retailer 14
-
$2,793 AUD
View
Price last confirmed 9 days ago
Most Expensive
NZ Jewellers
059eba3d-1a56-451c-8931-93f566e049ed · Oct 30
$3,404 AUD
$2,383 USD
View
Price under review
14 more retailers have this diamond
Prices start from $907 AUDSave up to $1,077 AUD

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
$907 AUD