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Oval|Natural|GIA

0.51ct K SI1 Oval Natural Diamond

GD • K/SI1 • GIA 6107574915

Certificate GIA 6107574915

Diamond specifications and retailer prices

From $933 AUD
As of November 6, 2026
Save $400 AUD (30%) vs most expensive(unlock to see where)
2 retailers carry this diamond
Most expensive: $1,333 AUD 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 $933 to $1,333, a $400 spread on the same certified stone. 77 Diamonds lists it at $1,333. 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

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $1,333 AUD|Low: $920 AUD|High: $1,348 AUD|Avg: $1,135 AUD|+0.3%
77 Diamonds
Retailer 2
November 5, 2026
Retailer 2$933 AUD
77 Diamonds$1,333 AUD

31 data points across 2 retailers

2 retailers$933 AUD to $1,333 AUD

B
Cheapest Retailer
-
$933 AUD
Most Expensive
C
77 Diamonds
OVZ8FZCHVKS · Nov 5
$1,333 AUD
£721 GBP
View
1 more retailer has this diamond
Prices start from $933 AUDSave up to $400 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.

B
0.51ct Oval
$933 AUD