CaratHunter
Plans
Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

VG • H/SI1 • GIA 7558684453

Certificate GIA 7558684453

Diamond specifications and retailer prices

From £3,105 GBP
HK$32,500 HKD
As of November 1, 2026
Save £4,026 GBP (56%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £7,130 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 H colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 7558684453. Listed at 23 retailers as of October 30, 2026, with prices from £3,105 to £7,130, a £4,026 spread on the same certified stone. NZ Jewellers lists it at £7,130. 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
H
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle43°
Pavilion angle36.2°
OriginNatural
Grading LabGIA
CertificateGIA 7558684453
Dimensions8.45 × 6.30 × 4.16 mm
L/W Ratio1.34
Girdle conditionFaceted
Top View
8.45 mm6.30 mm1.51 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 7558684453
Side View
Table 64.0%Crown 43°Girdle: THK-VTKPavilion 36.2°Culet: NoneDepth 66.1%

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: £7,130 GBP|Low: £3,105 GBP|High: £7,130 GBP|Avg: £4,128 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
Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 2, 2026
Retailer 7£3,105 GBP
Retailer 21£3,154 GBP
Retailer 15£3,202 GBP
Retailer 6£3,271 GBP
Retailer 5£3,344 GBP
Retailer 19£3,370 GBP
Retailer 3£3,462 GBP
Retailer 20£3,750 GBP
Retailer 17£3,901 GBP
Retailer 8£3,944 GBP
Retailer 11£3,949 GBP
Retailer 13£4,039 GBP
Retailer 9£4,202 GBP
Retailer 12£4,321 GBP
Retailer 10£4,327 GBP
Retailer 2£4,419 GBP
Retailer 14£4,471 GBP
Retailer 16£4,818 GBP
Retailer 4£5,089 GBP
Retailer 18£6,593 GBP
NZ Jewellers£7,130 GBP

30 data points across 21 retailers

23 retailers£3,105 GBP to £7,130 GBP

A
Cheapest Retailer
-
£3,105 GBP
HK$32,500 HKD
A
Retailer 2
-
£3,154 GBP
$4,226 USD
View
A
Retailer 3
-
£3,202 GBP
$4,290 USD
View
A
Retailer 4
-
£3,271 GBP
$4,383 USD
View
A
Retailer 5
-
£3,344 GBP
$4,481 USD
View
A
Retailer 6
-
£3,370 GBP
$4,515 USD
View
B+
Retailer 7
-
£3,462 GBP
$4,639 USD
View
Final sale: no returns
B+
Retailer 8
-
£3,750 GBP
$5,025 USD
View
Retailer 9
-
£3,862 GBP
$5,175 USD
View
Price last confirmed 10 days ago
B+
Retailer 10
-
£3,901 GBP
View
B+
Retailer 11
-
£3,944 GBP
$5,285 USD
View
B+
Retailer 12
-
£3,949 GBP
$5,291 USD
View
B+
Retailer 13
-
£4,039 GBP
View
B+
Retailer 14
-
£4,202 GBP
$5,630 USD
View
B+
Retailer 15
-
£4,321 GBP
$5,790 USD
View
B+
Retailer 16
-
£4,321 GBP
A$8,908 AUD
View
B+
Retailer 17
-
£4,327 GBP
$5,798 USD
View
B+
Retailer 18
-
£4,419 GBP
€5,639 EUR
View
B+
Retailer 19
-
£4,471 GBP
$5,990 USD
View
B+
Retailer 20
-
£4,818 GBP
$6,456 USD
View
B
Retailer 21
-
£5,089 GBP
ZAR 110,147 ZAR
View
B
Retailer 22
-
£6,593 GBP
View
Most Expensive
B
NZ Jewellers
2a710eeb-81af-4217-ab6c-6db5bde968a2 · Oct 30
£7,130 GBP
$9,554 USD
View
22 more retailers have this diamond
Prices start from £3,105 GBPSave up to £4,026 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 Oval
£3,105 GBP