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0.51ct K IF Round Natural Diamond

EX • K/IF • GIA 6552034892

Certificate GIA 6552034892

Diamond specifications and retailer prices

From £383 GBP
As of November 2, 2026
Save £317 GBP (45%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £700 GBP at Frank Darling · As of November 2, 2026
View at Frank Darling

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 6552034892. Listed at 12 retailers as of November 2, 2026, with prices from £383 to £700, a £317 spread on the same certified stone. Frank Darling lists it at £700. 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 angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6552034892
Dimensions5.12 × 5.15 × 3.16 mm
L/W Ratio1.01
Top View
5.12 mm5.15 mm0.51 ctK / IF
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552034892
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.6%

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 2
Current: £700 GBP|Low: £383 GBP|High: £723 GBP|Avg: £524 GBP|-3.2%
Frank Darling
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 5, 2026
Retailer 11£383 GBP
Retailer 2£397 GBP
Retailer 9£418 GBP
Retailer 4£464 GBP
Retailer 8£496 GBP
Retailer 10£534 GBP
Retailer 6£542 GBP
Retailer 7£556 GBP
Retailer 5£560 GBP
Retailer 3£574 GBP
Frank Darling£700 GBP

36 data points across 11 retailers

12 retailers£383 GBP to £700 GBP

A
Cheapest Retailer
-
£383 GBP
A
Retailer 2
-
£397 GBP
View
A
Retailer 3
-
£418 GBP
View
A
Retailer 4
-
£464 GBP
View
B+
Retailer 5
-
£484 GBP
View
A
Retailer 6
-
£496 GBP
View
B+
Retailer 7
-
£534 GBP
View
B+
Retailer 8
-
£542 GBP
View
B+
Retailer 9
-
£556 GBP
View
B+
Retailer 10
-
£560 GBP
View
Retailer 11
-
£574 GBP
View
Price last confirmed 11 days ago
Most Expensive
B+
Frank Darling
2620336HK · Nov 2
£700 GBP
$942 USD
View
11 more retailers have this diamond
Prices start from £383 GBPSave up to £317 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.

A
0.51ct Round
£383 GBP