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Round|Natural|IGI

0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • IGI 483109345

Shape and cutting style on the report: Round brilliant

Certificate IGI 483109345

Diamond specifications and retailer prices

From $376 AUD
As of November 5, 2026
Save $1,327 AUD (78%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: $1,703 AUD 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 L colour (faint-tinted) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 483109345. Listed at 8 retailers as of November 4, 2026, with prices from $376 to $1,703, a $1,327 spread on the same certified stone. NZ Jewellers lists it at $1,703. 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
L
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.8°
Pavilion angle41°
OriginNatural
Grading LabIGI
CertificateIGI 483109345
Dimensions5.20 × 5.23 × 3.09 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
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Top View
5.20 mm5.23 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 483109345
Side View
Table 60.5%Crown 33.8°Girdle: ThinPavilion 41°Culet: NoneDepth 59.4%

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: $1,703 AUD|Low: $376 AUD|High: $1,703 AUD|Avg: $619 AUD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7$376 AUD
Retailer 5$393 AUD
Retailer 9$404 AUD
Retailer 4$419 AUD
Retailer 8$506 AUD
Retailer 6$511 AUD
Retailer 11$561 AUD
Retailer 3$564 AUD
Retailer 2$646 AUD
Retailer 10$669 AUD
NZ Jewellers$1,703 AUD

15 data points across 11 retailers

8 retailers$376 AUD to $1,703 AUD

A
Cheapest Retailer
-
$376 AUD
Retailer 2
-
$404 AUD
View
Price last confirmed 8 days ago
B+
Retailer 3
-
$419 AUD
View
B+
Retailer 4
-
$506 AUD
View
B+
Retailer 5
-
$511 AUD
View
B+
Retailer 6
-
$561 AUD
View
B+
Retailer 7
-
$646 AUD
View
Most Expensive
C
NZ Jewellers
642ef4bc-e0b5-49b4-8f0a-4d2447f01fa6 · Nov 4
$1,703 AUD
$1,192 USD
View
7 more retailers have this diamond
Prices start from $376 AUDSave up to $1,327 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
$376 AUD