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Oval|Natural|GIA

1.50ct L SI1 Oval Natural Diamond

EX • L/SI1 • GIA 1558304891

Certificate GIA 1558304891

Diamond specifications and retailer prices

From £1,061 GBP
As of November 6, 2026
Save £2,429 GBP (70%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: £3,490 GBP at NZ Jewellers · As of November 5, 2026
View at NZ Jewellers

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded L colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1558304891. Listed at 16 retailers as of November 5, 2026, with prices from £1,061 to £3,490, a £2,429 spread on the same certified stone. NZ Jewellers lists it at £3,490. 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

1.50
Carat
L
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1558304891
Dimensions9.06 × 6.11 × 3.92 mm
L/W Ratio1.48
Top View
9.06 mm6.11 mm1.50 ctL / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1558304891
Side View
Table 59.0%CrownGirdlePavilionCulet: NDepth 64.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 6
Current: £3,490 GBP|Low: £1,061 GBP|High: £3,622 GBP|Avg: £1,740 GBP|+8.5%
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
November 6, 2026
Retailer 3£1,061 GBP
Retailer 14£1,303 GBP
Retailer 2£1,407 GBP
Retailer 12£1,431 GBP
Retailer 6£1,441 GBP
Retailer 13£1,464 GBP
Retailer 5£1,485 GBP
Retailer 15£1,497 GBP
Retailer 8£1,533 GBP
Retailer 10£1,553 GBP
Retailer 4£1,651 GBP
Retailer 11£1,746 GBP
Retailer 9£1,943 GBP
Retailer 7£2,111 GBP
NZ Jewellers£3,490 GBP

25 data points across 15 retailers

16 retailers£1,061 GBP to £3,490 GBP

A
Cheapest Retailer
-
£1,061 GBP
A
Retailer 2
-
£1,303 GBP
View
A
Retailer 3
-
£1,407 GBP
View
A
Retailer 4
-
£1,431 GBP
View
B+
Retailer 5
-
£1,441 GBP
View
A
Retailer 6
-
£1,464 GBP
View
Retailer 7
-
£1,485 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,497 GBP
View
A
Retailer 9
-
£1,533 GBP
View
A
Retailer 10
-
£1,553 GBP
View
A
Retailer 11
-
£1,651 GBP
View
B+
Retailer 12
-
£1,746 GBP
View
B+
Retailer 13
-
£1,943 GBP
View
B+
Retailer 14
-
£2,111 GBP
View
Retailer 15
-
£3,218 GBP
View
Price last confirmed 23 days ago
Most Expensive
C
NZ Jewellers
4ed4f9ff-f650-463b-adb3-47f8af490fff · Nov 5
£3,490 GBP
$4,671 USD
View
15 more retailers have this diamond
Prices start from £1,061 GBPSave up to £2,429 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
1.50ct Oval
£1,061 GBP