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Oval|Natural|GIA

1.51ct G SI2 Oval Natural Diamond

EX • G/SI2 • GIA 5563520590

Certificate GIA 5563520590

Diamond specifications and retailer prices

From £3,372 GBP
HK$35,300 HKD
As of November 1, 2026
Save £4,161 GBP (55%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £7,533 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 G 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 5563520590. Listed at 24 retailers as of October 30, 2026, with prices from £3,372 to £7,533, a £4,161 spread on the same certified stone. NZ Jewellers lists it at £7,533. 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
G
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36.1°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 5563520590
Dimensions9.02 × 6.54 × 4.11 mm
L/W Ratio1.38
Girdle conditionFaceted
Culet sizeNone
Top View
9.02 mm6.54 mm1.51 ctG / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 5563520590
Side View
Table 62.0%Crown 36.1°Girdle: MED-STKPavilion 39.6°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 1
Current: £7,533 GBP|Low: £3,267 GBP|High: £9,944 GBP|Avg: £4,390 GBP|+1.4%
NZ Jewellers
Retailer 2
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Retailer 23
Retailer 24
November 1, 2026
Retailer 22£3,372 GBP
Retailer 15£3,392 GBP
Retailer 16£3,399 GBP
Retailer 20£3,461 GBP
Retailer 14£3,493 GBP
Retailer 6£3,559 GBP
Retailer 4£3,634 GBP
Retailer 9£3,767 GBP
Retailer 10£3,994 GBP
Retailer 11£3,994 GBP
Retailer 19£4,080 GBP
Retailer 17£4,194 GBP
Retailer 23£4,274 GBP
Retailer 2£4,364 GBP
Retailer 18£4,393 GBP
Retailer 5£4,560 GBP
Retailer 7£4,560 GBP
Retailer 3£4,709 GBP
Retailer 8£4,709 GBP
Retailer 12£4,863 GBP
Retailer 24£4,922 GBP
Retailer 21£5,154 GBP
Retailer 13£6,636 GBP
NZ Jewellers£7,533 GBP

14 data points across 24 retailers

24 retailers£3,372 GBP to £7,533 GBP

A
Cheapest Retailer
-
£3,372 GBP
HK$35,300 HKD
A
Retailer 2
-
£3,392 GBP
$4,545 USD
View
Retailer 3
-
£3,399 GBP
₹433,691 INR
View
Price last confirmed 17 days ago
A
Retailer 4
-
£3,461 GBP
$4,637 USD
View
A
Retailer 5
-
£3,493 GBP
$4,680 USD
View
A
Retailer 6
-
£3,559 GBP
$4,768 USD
View
A
Retailer 7
-
£3,634 GBP
$4,869 USD
View
A
Retailer 8
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£3,767 GBP
$5,047 USD
View
Final sale: no returns
A
Retailer 9
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£3,994 GBP
$5,352 USD
View
A
Retailer 10
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£3,994 GBP
$5,352 USD
View
A
Retailer 11
-
£4,080 GBP
$5,467 USD
View
Retailer 12
-
£4,194 GBP
SGD 7,594 SGD
View
Price last confirmed 17 days ago
A
Retailer 13
-
£4,274 GBP
$5,727 USD
View
A
Retailer 14
-
£4,364 GBP
View
A
Retailer 15
-
£4,393 GBP
View
B+
Retailer 16
-
£4,470 GBP
$5,989 USD
View
A
Retailer 17
-
£4,560 GBP
$6,110 USD
View
B+
Retailer 18
-
£4,560 GBP
$6,110 USD
View
B+
Retailer 19
-
£4,709 GBP
$6,309 USD
View
B+
Retailer 20
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£4,709 GBP
$6,310 USD
View
B+
Retailer 21
-
£4,922 GBP
€6,281 EUR
View
B+
Retailer 22
-
£5,154 GBP
$6,906 USD
View
B+
Retailer 23
-
£6,636 GBP
View
Most Expensive
B
NZ Jewellers
cd12658d-d5f9-4cf2-88fb-76e01f14db34 · Oct 30
£7,533 GBP
$10,094 USD
View
23 more retailers have this diamond
Prices start from £3,372 GBPSave up to £4,161 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
£3,372 GBP