Round|Natural|GIA

1.51ct I VS1 Round Natural Diamond

EX • I/VS1 • GIA 1448644864

Certificate GIA 1448644864

Diamond specifications and retailer prices

From £5,493 GBP
As of November 1, 2026
Save £4,419 GBP (45%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £11,927 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by GIA 1448644864. Listed at 20 retailers as of November 1, 2026, with a 80% 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

1.51
Carat
I
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
OriginNatural
Grading LabGIA
CertificateGIA 1448644864
Dimensions7.34 × 7.30 × 4.54 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
Additional pinpoints are not shown.
Key to symbols
Crystal, Needle, Pinpoint, Knot, Natural
Top View
7.34 mm7.30 mm1.51 ctI / VS1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1448644864
Side View
Table 61.0%Crown 34.5°Girdle: MED-STKPavilionCulet: NoneDepth 62.0%

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 1
Current: £11,927 GBP|Low: £5,466 GBP|High: £11,927 GBP|Avg: £7,489 GBP
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
November 5, 2026
Retailer 13£5,493 GBP
Retailer 12£5,584 GBP
Retailer 11£5,637 GBP
Retailer 4£5,937 GBP
Retailer 14£5,963 GBP
Retailer 5£6,461 GBP
Retailer 7£6,547 GBP
Retailer 3£6,650 GBP
Retailer 10£6,838 GBP
Retailer 6£7,454 GBP
Retailer 2£7,732 GBP
Retailer 9£8,761 GBP
Retailer 8£9,911 GBP
NZ Jewellers£11,927 GBP

38 data points across 14 retailers

20 retailers£5,493 GBP to £9,911 GBP

A
Cheapest Retailer
-
£5,493 GBP
A
Retailer 2
-
£5,584 GBP
View
B+
Retailer 3
-
£5,637 GBP
View
B+
Retailer 4
-
£5,937 GBP
View
B+
Retailer 5
-
£5,963 GBP
View
Final sale: no returns
Retailer 6
-
£5,964 GBP
View
Price last confirmed 20 days ago
B+
Retailer 7
-
£6,355 GBP
View
Retailer 8
-
£6,461 GBP
View
Price last confirmed 18 days ago
B+
Retailer 9
-
£6,547 GBP
View
Retailer 10
-
£6,560 GBP
View
Price last confirmed 21 days ago
Retailer 11
-
£6,650 GBP
View
Price last confirmed 32 days ago
B+
Retailer 12
-
£6,838 GBP
View
Retailer 13
-
£6,838 GBP
View
Price last confirmed 17 days ago
B
Retailer 14
-
£7,130 GBP
View
Retailer 15
-
£7,454 GBP
View
Price last confirmed 18 days ago
B+
Retailer 16
-
£7,732 GBP
View
Retailer 17
-
£7,850 GBP
View
Price last confirmed 21 days ago
B
Retailer 18
-
£8,761 GBP
View
B
Retailer 19
-
£9,911 GBP
View
Most Expensive
NZ Jewellers
2785a024-740c-422b-9481-aaab4d15f1ba · Oct 17
£11,927 GBP
$16,101 USD
View
Price last confirmed 19 days ago
19 more retailers have this diamond
Prices start from £5,493 GBPSave up to £4,419 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
1.51ct Round
£5,493 GBP