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Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

VG • I/SI2 • GIA 1423043483

Certificate GIA 1423043483

Diamond specifications and retailer prices

From £5,905 GBP
$7,912 USD
As of October 30, 2026
Save £4,663 GBP (44%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £10,568 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural oval diamond

This 1.51ct natural oval sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 1423043483. Listed at 17 retailers as of October 30, 2026, with prices from £5,905 to £10,568, a £4,663 spread on the same certified stone. NZ Jewellers lists it at £10,568. 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

1.51
Carat
I
Colour
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1423043483
Dimensions9.55 × 6.18 × 3.90 mm
L/W Ratio1.55
Top View
9.55 mm6.18 mm1.51 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1423043483
Side View
Table 66.0%CrownGirdle: THN-VTKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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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: Oct 30
Current: £10,568 GBP|Low: £5,650 GBP|High: £10,568 GBP|Avg: £7,698 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 6£5,650 GBP
Retailer 10£6,341 GBP
Retailer 11£6,451 GBP
Retailer 9£6,869 GBP
Retailer 4£6,929 GBP
Retailer 7£6,974 GBP
Retailer 2£7,854 GBP
Retailer 8£7,926 GBP
Retailer 3£9,039 GBP
Retailer 5£9,956 GBP
NZ Jewellers£10,568 GBP

40 data points across 11 retailers

17 retailers£5,905 GBP to £10,568 GBP

Retailer 1
-
£5,650 GBP
$7,570 USD
Price last confirmed 13 days ago
B
Retailer 2
-
£5,905 GBP
$7,912 USD
View
B
Retailer 3
-
£5,936 GBP
$7,954 USD
View
B
Retailer 4
-
£6,187 GBP
CA$11,514 CAD
View
B
Retailer 5
-
£6,341 GBP
$8,496 USD
View
B
Retailer 6
-
£6,451 GBP
$8,644 USD
View
B
Retailer 7
-
£6,869 GBP
$9,204 USD
View
B
Retailer 8
-
£6,929 GBP
View
B
Retailer 9
-
£6,974 GBP
$9,345 USD
View
B
Retailer 10
-
£7,295 GBP
$9,774 USD
View
B
Retailer 11
-
£7,501 GBP
$10,050 USD
View
B
Retailer 12
-
£7,501 GBP
$10,050 USD
View
B
Retailer 13
-
£7,747 GBP
$10,380 USD
View
B
Retailer 14
-
£7,854 GBP
€10,022 EUR
View
B
Retailer 15
-
£7,926 GBP
$10,620 USD
View
B
Retailer 16
-
£9,956 GBP
View
Most Expensive
C
NZ Jewellers
7705be8d-1a12-473f-a572-c8bb65c06c3f · Oct 30
£10,568 GBP
$14,160 USD
View
16 more retailers have this diamond
Prices start from £5,905 GBPSave up to £4,663 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
1.51ct Oval
£5,905 GBP