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Round|Natural|GIA

0.51ct I VVS2 Round Natural Diamond

EX • I/VVS2 • GIA 6521866708

Certificate GIA 6521866708

Diamond specifications and retailer prices

From £408 GBP
As of November 4, 2026
Save £958 GBP (70%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £2,159 GBP at NZ Jewellers · As of October 27, 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 I colour (near-colourless) and VVS2 clarity (very-very-slightly-included), with a top-tier cut grade and certified by GIA 6521866708. Listed at 21 retailers as of November 4, 2026, with a 235% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

0.51
Carat
I
Colour
VVS2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6521866708
Dimensions5.09 × 5.11 × 3.20 mm
L/W Ratio1.00
Star length50%
Lower girdle80%
Culet sizeNone
Key to symbols
Pinpoint
Top View
5.09 mm5.11 mm0.51 ctI / VVS2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6521866708
Side View
Table 60.0%Crown 34°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 62.8%

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 4
Current: £2,159 GBP|Low: £408 GBP|High: £2,177 GBP|Avg: £796 GBP|-0.8%
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
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 5, 2026
Retailer 18£408 GBP
Retailer 4£512 GBP
Retailer 11£517 GBP
Retailer 12£563 GBP
Retailer 5£630 GBP
Retailer 10£635 GBP
Retailer 20£656 GBP
Retailer 8£683 GBP
Retailer 3£690 GBP
Retailer 2£707 GBP
Retailer 19£709 GBP
Retailer 6£781 GBP
Retailer 15£787 GBP
Retailer 14£794 GBP
Retailer 7£796 GBP
Retailer 16£804 GBP
Retailer 17£813 GBP
Retailer 13£1,053 GBP
Retailer 21£1,248 GBP
Retailer 9£1,366 GBP
NZ Jewellers£2,159 GBP

24 data points across 21 retailers

21 retailers£408 GBP to £1,366 GBP

A
Cheapest Retailer
-
£408 GBP
A
Retailer 2
-
£512 GBP
View
A
Retailer 3
-
£517 GBP
View
A
Retailer 4
-
£563 GBP
View
B+
Retailer 5
-
£630 GBP
View
Final sale: no returns
B+
Retailer 6
-
£635 GBP
View
B+
Retailer 7
-
£656 GBP
View
B+
Retailer 8
-
£683 GBP
View
B+
Retailer 9
-
£690 GBP
View
B+
Retailer 10
-
£707 GBP
View
B+
Retailer 11
-
£709 GBP
View
B+
Retailer 12
-
£781 GBP
View
B+
Retailer 13
-
£787 GBP
View
Retailer 14
-
£794 GBP
View
Price last confirmed 9 days ago
B+
Retailer 15
-
£796 GBP
View
B+
Retailer 16
-
£804 GBP
View
B+
Retailer 17
-
£813 GBP
View
B
Retailer 18
-
£1,053 GBP
View
B
Retailer 19
-
£1,248 GBP
View
B
Retailer 20
-
£1,366 GBP
View
Most Expensive
NZ Jewellers
3c049d2d-eabc-4970-a39f-352974de6906 · Oct 27
£2,159 GBP
$2,915 USD
View
Price last confirmed 9 days ago
20 more retailers have this diamond
Prices start from £408 GBPSave up to £958 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
£408 GBP