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Round|Natural|GIA

0.51ct K IF Round Natural Diamond

EX • K/IF • GIA 6555679412

Certificate GIA 6555679412

Diamond specifications and retailer prices

From $652 AUD
As of November 6, 2026
Save $1,122 AUD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,678 AUD at NZ Jewellers · As of September 28, 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 K colour (faint-tinted) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by GIA 6555679412. Listed at 13 retailers as of November 4, 2026, with a 172% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.51
Carat
K
Colour
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.6°
OriginNatural
Grading LabGIA
CertificateGIA 6555679412
Dimensions5.11 × 5.08 × 3.16 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.11 mm5.08 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6555679412
Side View
Table 59.0%Crown 34°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 62.1%

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 6
Current: $811 AUD|Low: $652 AUD|High: $1,995 AUD|Avg: $1,060 AUD|-6.2%
Retailer 1
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 2$652 AUD
Retailer 11$710 AUD
Retailer 12$728 AUD
Retailer 1$811 AUD
Retailer 5$950 AUD
Retailer 6$961 AUD
Retailer 9$1,026 AUD
Retailer 3$1,119 AUD
Retailer 10$1,144 AUD
Retailer 4$1,150 AUD
Retailer 7$1,192 AUD
Retailer 8$1,774 AUD

38 data points across 12 retailers

13 retailers$652 AUD to $1,774 AUD

A
Cheapest Retailer
-
$652 AUD
A
Retailer 2
-
$710 AUD
View
Final sale: no returns
A
Retailer 3
-
$728 AUD
View
A
Retailer 4
-
$811 AUD
View
B+
Retailer 5
-
$950 AUD
View
A
Retailer 6
-
$961 AUD
View
B+
Retailer 7
-
$1,026 AUD
View
B+
Retailer 8
-
$1,119 AUD
View
B+
Retailer 9
-
$1,144 AUD
View
B+
Retailer 10
-
$1,192 AUD
View
B
Retailer 11
-
$1,774 AUD
View
Retailer 12
-
$2,652 AUD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
03587995-2e7b-44ba-a300-74f9a7f87434 · Sep 28
$2,678 AUD
$1,840 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from $652 AUDSave up to $1,122 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
$652 AUD