Oval|Natural|GIA

1.51ct H SI1 Oval Natural Diamond

ID • H/SI1 • GIA 6532284793

Certificate GIA 6532284793

Diamond specifications and retailer prices

From £4,753 GBP
$6,369 USD
As of October 28, 2026
Save £5,310 GBP (53%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £10,064 GBP at NZ Jewellers · As of October 27, 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 top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6532284793. Listed at 24 retailers as of October 27, 2026, with prices from £4,753 to £10,064, a £5,310 spread on the same certified stone. NZ Jewellers lists it at £10,064. 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
H
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.97°
OriginNatural
Grading LabGIA
CertificateGIA 6532284793
Dimensions9.06 × 6.43 × 3.94 mm
L/W Ratio1.41
Girdle conditionVery Thick
Key to symbols
Feather, Crystal, Cloud, Needle
Top View
9.06 mm6.43 mm1.51 ctH / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6532284793
Side View
Table 63.0%Crown 35.97°Girdle: STK-VTKPavilionCulet: NoneDepth 61.3%

Caratlytics Score

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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 28
Current: £10,064 GBP|Low: £4,612 GBP|High: £10,064 GBP|Avg: £6,125 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
October 29, 2026
Retailer 7£4,753 GBP
Retailer 10£4,791 GBP
Retailer 6£5,032 GBP
Retailer 20£5,032 GBP
Retailer 8£5,041 GBP
Retailer 9£5,074 GBP
Retailer 12£5,358 GBP
Retailer 11£5,421 GBP
Retailer 18£5,451 GBP
Retailer 19£5,535 GBP
Retailer 2£5,675 GBP
Retailer 13£5,703 GBP
Retailer 4£5,765 GBP
Retailer 5£5,769 GBP
Retailer 3£6,290 GBP
Retailer 15£6,565 GBP
Retailer 17£7,326 GBP
Retailer 14£8,430 GBP
Retailer 16£8,464 GBP
NZ Jewellers£10,064 GBP

23 data points across 20 retailers

24 retailers£4,753 GBP to £10,064 GBP

B+
Cheapest Retailer
-
£4,753 GBP
$6,369 USD
B+
Retailer 2
-
£4,791 GBP
$6,419 USD
View
B+
Retailer 3
-
£5,032 GBP
$6,742 USD
View
Final sale: no returns
B+
Retailer 4
-
£5,032 GBP
$6,742 USD
View
B+
Retailer 5
-
£5,041 GBP
$6,755 USD
View
B+
Retailer 6
-
£5,074 GBP
$6,798 USD
View
Retailer 7
-
£5,358 GBP
$7,179 USD
View
Price last confirmed 7 days ago
B+
Retailer 8
-
£5,421 GBP
$7,263 USD
View
B+
Retailer 9
-
£5,451 GBP
$7,304 USD
View
B
Retailer 10
-
£5,535 GBP
$7,416 USD
View
B+
Retailer 11
-
£5,675 GBP
View
B+
Retailer 12
-
£5,703 GBP
View
Retailer 13
-
£5,765 GBP
A$11,884 AUD
View
Price last confirmed 10 days ago
B+
Retailer 14
-
£5,769 GBP
$7,730 USD
View
B+
Retailer 15
-
£5,799 GBP
$7,770 USD
View
B+
Retailer 16
-
£5,799 GBP
$7,770 USD
View
B
Retailer 17
-
£5,993 GBP
$8,030 USD
View
B
Retailer 18
-
£6,087 GBP
$8,157 USD
View
B
Retailer 19
-
£6,290 GBP
$8,428 USD
View
B
Retailer 20
-
£6,565 GBP
€8,378 EUR
View
B
Retailer 21
-
£7,326 GBP
ZAR 158,584 ZAR
View
B
Retailer 22
-
£8,430 GBP
View
B
Retailer 23
-
£8,464 GBP
View
Most Expensive
B
NZ Jewellers
144cd5a2-b832-42d8-b70a-354daa8ffc92 · Oct 27
£10,064 GBP
$13,484 USD
View
23 more retailers have this diamond
Prices start from £4,753 GBPSave up to £5,310 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
£4,753 GBP