Oval|Natural|GIA

1.51ct I SI2 Oval Natural Diamond

EX • I/SI2 • GIA 6341101447

Certificate GIA 6341101447

Diamond specifications and retailer prices

From £5,398 GBP
$7,233 USD
As of October 30, 2026
Save £6,215 GBP (54%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £11,614 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6341101447. Listed at 17 retailers as of October 30, 2026, with prices from £5,398 to £11,614, a £6,215 spread on the same certified stone. NZ Jewellers lists it at £11,614. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.51
Carat
I
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6341101447
Dimensions8.65 × 6.62 × 4.05 mm
L/W Ratio1.31
Top View
8.65 mm6.62 mm1.51 ctI / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6341101447
Side View
Table 56.0%CrownGirdle: THN-THKPavilionCulet: NoneDepth 61.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £11,614 GBP|Low: £5,180 GBP|High: £11,614 GBP|Avg: £7,288 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£5,180 GBP
Retailer 10£5,807 GBP
Retailer 11£5,856 GBP
Retailer 9£6,291 GBP
Retailer 7£6,388 GBP
Retailer 4£6,465 GBP
Retailer 2£7,177 GBP
Retailer 8£7,259 GBP
Retailer 3£8,278 GBP
Retailer 5£9,730 GBP
NZ Jewellers£11,614 GBP

41 data points across 11 retailers

17 retailers£5,398 GBP to £11,614 GBP

Retailer 1
-
£5,180 GBP
$6,940 USD
Price last confirmed 13 days ago
B
Retailer 2
-
£5,398 GBP
$7,233 USD
View
B
Retailer 3
-
£5,437 GBP
$7,285 USD
View
B+
Retailer 4
-
£5,701 GBP
CA$10,609 CAD
View
B
Retailer 5
-
£5,807 GBP
$7,781 USD
View
B
Retailer 6
-
£5,856 GBP
$7,846 USD
View
B
Retailer 7
-
£6,291 GBP
$8,429 USD
View
B
Retailer 8
-
£6,388 GBP
$8,559 USD
View
B
Retailer 9
-
£6,465 GBP
View
B
Retailer 10
-
£6,667 GBP
$8,933 USD
View
B
Retailer 11
-
£6,896 GBP
$9,240 USD
View
B
Retailer 12
-
£6,896 GBP
$9,240 USD
View
B
Retailer 13
-
£7,127 GBP
$9,550 USD
View
B
Retailer 14
-
£7,177 GBP
€9,159 EUR
View
B
Retailer 15
-
£7,259 GBP
$9,726 USD
View
B
Retailer 16
-
£9,730 GBP
View
Most Expensive
B
NZ Jewellers
170f851d-aaac-4eab-9e8f-04e7ef44227a · Oct 30
£11,614 GBP
$15,561 USD
View
16 more retailers have this diamond
Prices start from £5,398 GBPSave up to £6,215 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
£5,398 GBP