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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 $808 NZD
As of November 6, 2026
Save $1,391 NZD (63%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,319 NZD 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
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: $1,005 NZD|Low: $808 NZD|High: $2,473 NZD|Avg: $1,313 NZD|-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$808 NZD
Retailer 11$880 NZD
Retailer 12$902 NZD
Retailer 1$1,005 NZD
Retailer 5$1,178 NZD
Retailer 6$1,191 NZD
Retailer 9$1,272 NZD
Retailer 3$1,387 NZD
Retailer 10$1,418 NZD
Retailer 4$1,425 NZD
Retailer 7$1,477 NZD
Retailer 8$2,199 NZD

38 data points across 12 retailers

13 retailers$808 NZD to $2,199 NZD

A
Cheapest Retailer
-
$808 NZD
A
Retailer 2
-
$880 NZD
View
Final sale: no returns
A
Retailer 3
-
$902 NZD
View
A
Retailer 4
-
$1,005 NZD
View
B+
Retailer 5
-
$1,178 NZD
View
A
Retailer 6
-
$1,191 NZD
View
B+
Retailer 7
-
$1,272 NZD
View
B+
Retailer 8
-
$1,387 NZD
View
B+
Retailer 9
-
$1,418 NZD
View
B+
Retailer 10
-
$1,477 NZD
View
B
Retailer 11
-
$2,199 NZD
View
Retailer 12
-
$3,287 NZD
View
Price last confirmed 31 days ago
Most Expensive
NZ Jewellers
03587995-2e7b-44ba-a300-74f9a7f87434 · Sep 28
$3,319 NZD
$1,840 USD
View
Price last confirmed 39 days ago
12 more retailers have this diamond
Prices start from $808 NZDSave up to $1,391 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
$808 NZD