CaratHunter
Plans
Oval|Natural|GIA

0.51ct K SI2 Oval Natural Diamond

VG • K/SI2 • GIA 5566616416

Certificate GIA 5566616416

Diamond specifications and retailer prices

From €245 EUR
As of November 6, 2026
Save €1,071 EUR (81%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: €1,317 EUR at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 0.51ct natural oval diamond

This 0.51ct natural oval sits in the half to three-quarter carat band, graded K colour (faint-tinted) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 5566616416. Listed at 17 retailers as of November 5, 2026, with prices from €245 to €1,317, a €1,071 spread on the same certified stone. NZ Jewellers lists it at €1,317. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

0.51
Carat
K
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5566616416
Dimensions6.45 × 4.40 × 2.80 mm
L/W Ratio1.47
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Crystal, Feather
Top View
6.45 mm4.40 mm0.51 ctK / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 5566616416
Side View
Table 59.0%CrownGirdle: MED-VTKPavilionCulet: NoneDepth 63.6%

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: €1,317 EUR|Low: €245 EUR|High: €1,370 EUR|Avg: €482 EUR|-3.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
Retailer 17
November 6, 2026
Retailer 2€245 EUR
Retailer 17€305 EUR
Retailer 13€309 EUR
Retailer 8€317 EUR
Retailer 3€334 EUR
Retailer 7€344 EUR
Retailer 5€370 EUR
Retailer 6€383 EUR
Retailer 14€398 EUR
Retailer 10€408 EUR
Retailer 11€441 EUR
Retailer 4€460 EUR
Retailer 9€462 EUR
Retailer 16€475 EUR
Retailer 15€626 EUR
Retailer 12€793 EUR
NZ Jewellers€1,317 EUR

21 data points across 17 retailers

17 retailers€245 EUR to €1,317 EUR

A
Cheapest Retailer
-
€245 EUR
A
Retailer 2
-
€305 EUR
View
A
Retailer 3
-
€309 EUR
View
A
Retailer 4
-
€317 EUR
View
Final sale: no returns
A
Retailer 5
-
€334 EUR
View
A
Retailer 6
-
€344 EUR
View
Retailer 7
-
€370 EUR
View
Price last confirmed 8 days ago
B+
Retailer 8
-
€383 EUR
View
A
Retailer 9
-
€398 EUR
View
A
Retailer 10
-
€408 EUR
View
B+
Retailer 11
-
€441 EUR
View
B+
Retailer 12
-
€460 EUR
View
B+
Retailer 13
-
€462 EUR
View
B+
Retailer 14
-
€475 EUR
View
B
Retailer 15
-
€626 EUR
View
B
Retailer 16
-
€793 EUR
View
Most Expensive
C
NZ Jewellers
050153ca-acf3-4ec1-accd-f670c23af8a1 · Nov 5
€1,317 EUR
$1,470 USD
View
16 more retailers have this diamond
Prices start from €245 EURSave up to €1,071 EUR

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 Oval
€245 EUR