CaratHunter
Plans
Oval|Natural|GIA

0.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 6107574915

Certificate GIA 6107574915

Diamond specifications and retailer prices

From £479 GBP
As of November 6, 2026
Save £205 GBP (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: £684 GBP at 77 Diamonds · As of November 5, 2026
View at 77 Diamonds

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 SI1 clarity (slightly-included), with a standard cut grade stated by the retailer rather than the lab and certified by GIA 6107574915. Listed at 2 retailers as of November 5, 2026, with prices from £479 to £684, a £205 spread on the same certified stone. 77 Diamonds lists it at £684. 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
SI1
Clarity
Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Good
PolishGood
SymmetryFair
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 6107574915
Dimensions5.89 × 4.71 × 2.81 mm
L/W Ratio1.25
Top View
5.89 mm4.71 mm0.51 ctK / SI1
OriginNatural
CutGood
PolishGood
SymmetryFair
FluorescenceFaint
CertificateGIA 6107574915
Side View
Table 60.0%CrownGirdlePavilionCuletDepth 59.7%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £684 GBP|Low: £472 GBP|High: £692 GBP|Avg: £583 GBP|+0.3%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2£479 GBP
77 Diamonds£684 GBP

31 data points across 2 retailers

2 retailers£479 GBP to £684 GBP

B
Cheapest Retailer
-
£479 GBP
Most Expensive
C
77 Diamonds
OVZ8FZCHVKS · Nov 5
£684 GBP
View
1 more retailer has this diamond
Prices start from £479 GBPSave up to £205 GBP

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.

B
0.51ct Oval
£479 GBP