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Oval|Natural|GIA

1.51ct H SI2 Oval Natural Diamond

VG • H/SI2 • GIA 6395875679

Certificate GIA 6395875679

Diamond specifications and retailer prices

From £4,788 GBP
$6,415 USD
As of November 1, 2026
Save £5,892 GBP (55%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £10,680 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 SI2 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6395875679. Listed at 18 retailers as of October 30, 2026, with prices from £4,788 to £10,680, a £5,892 spread on the same certified stone. NZ Jewellers lists it at £10,680. 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
SI2
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6395875679
Dimensions8.94 × 6.44 × 4.07 mm
L/W Ratio1.39
Top View
8.94 mm6.44 mm1.51 ctH / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 6395875679
Side View
Table 57.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.2%

Caratlytics Score

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

Price History

Last verified: Nov 1
Current: £10,680 GBP|Low: £4,642 GBP|High: £10,680 GBP|Avg: £6,341 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
November 2, 2026
Retailer 12£4,788 GBP
Retailer 8£4,956 GBP
Retailer 5£5,000 GBP
Retailer 14£5,339 GBP
Retailer 13£5,385 GBP
Retailer 7£5,512 GBP
Retailer 4£5,785 GBP
Retailer 15£5,874 GBP
Retailer 9£5,899 GBP
Retailer 3£6,292 GBP
Retailer 6£6,292 GBP
Retailer 16£6,675 GBP
Retailer 2£6,976 GBP
Retailer 11£7,033 GBP
Retailer 10£8,899 GBP
NZ Jewellers£10,680 GBP

43 data points across 16 retailers

18 retailers£4,788 GBP to £10,680 GBP

B+
Cheapest Retailer
-
£4,788 GBP
$6,415 USD
B+
Retailer 2
-
£4,956 GBP
$6,640 USD
View
B+
Retailer 3
-
£5,000 GBP
$6,700 USD
View
B
Retailer 4
-
£5,339 GBP
$7,154 USD
View
Final sale: no returns
B
Retailer 5
-
£5,340 GBP
$7,155 USD
View
B
Retailer 6
-
£5,385 GBP
$7,215 USD
View
B
Retailer 7
-
£5,688 GBP
$7,621 USD
View
B
Retailer 8
-
£5,785 GBP
$7,751 USD
View
B
Retailer 9
-
£5,874 GBP
$7,871 USD
View
B+
Retailer 10
-
£5,899 GBP
View
B
Retailer 11
-
£6,292 GBP
$8,430 USD
View
B
Retailer 12
-
£6,292 GBP
$8,430 USD
View
B
Retailer 13
-
£6,330 GBP
$8,482 USD
View
B
Retailer 14
-
£6,501 GBP
$8,710 USD
View
B
Retailer 15
-
£6,675 GBP
$8,944 USD
View
B
Retailer 16
-
£6,976 GBP
€8,902 EUR
View
B
Retailer 17
-
£8,899 GBP
View
Most Expensive
C
NZ Jewellers
bdf876a8-95fc-4834-be79-3ca322a22f05 · Oct 30
£10,680 GBP
$14,310 USD
View
17 more retailers have this diamond
Prices start from £4,788 GBPSave up to £5,892 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
£4,788 GBP