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Round|Natural|GIA

0.51ct L SI2 Round Natural Diamond

EX • L/SI2 • GIA 1327713376

Certificate GIA 1327713376

Diamond specifications and retailer prices

From $497 AUD
As of November 2, 2026
Save $1,410 AUD (74%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $1,907 AUD at NZ Jewellers · As of November 2, 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 GIA 1327713376. Listed at 12 retailers as of November 2, 2026, with prices from $497 to $1,907, a $1,410 spread on the same certified stone. NZ Jewellers lists it at $1,907. 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 angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 1327713376
Dimensions5.11 × 5.13 × 3.17 mm
L/W Ratio1.00
Star length50%
Lower girdle75%
Culet sizeNone
Top View
5.11 mm5.13 mm0.51 ctL / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1327713376
Side View
Table 56.0%Crown 35.5°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.8%

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 2
Current: $634 AUD|Low: $533 AUD|High: $919 AUD|Avg: $699 AUD|+5.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
November 5, 2026
Retailer 3$536 AUD
Retailer 4$536 AUD
Retailer 1$634 AUD
Retailer 5$637 AUD
Retailer 6$879 AUD
Retailer 2$914 AUD

43 data points across 6 retailers

12 retailers$497 AUD to $1,907 AUD

Retailer 1
-
$497 AUD
Price last confirmed 28 days ago
A
Retailer 2
-
$497 AUD
View
Retailer 3
-
$536 AUD
View
Price last confirmed 8 days ago
Retailer 4
-
$554 AUD
View
Price last confirmed 38 days ago
B+
Retailer 5
-
$634 AUD
View
B+
Retailer 6
-
$637 AUD
View
Retailer 7
-
$670 AUD
View
Price last confirmed 28 days ago
B+
Retailer 8
-
$670 AUD
View
B+
Retailer 9
-
$683 AUD
View
B
Retailer 10
-
$914 AUD
View
Retailer 11
-
$1,907 AUD
View
Price last confirmed 43 days ago
Most Expensive
C
NZ Jewellers
4c06adae-2ca7-458b-854e-d7c9b1e2b7ca · Nov 2
$1,907 AUD
$1,335 USD
View
11 more retailers have this diamond
Prices start from $497 AUDSave up to $1,410 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
$497 AUD