Oval|Natural|GIA

1.50ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 1545745975

Certificate GIA 1545745975

Diamond specifications and retailer prices

From £3,750 GBP
$5,025 USD
As of October 31, 2026
Save £2,941 GBP (44%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,691 GBP at NZ Jewellers · As of October 30, 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 G 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 1545745975. Listed at 8 retailers as of October 30, 2026, with prices from £3,750 to £6,691, a £2,941 spread on the same certified stone. NZ Jewellers lists it at £6,691. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle39.46°
Pavilion angle40.49°
OriginNatural
Grading LabGIA
CertificateGIA 1545745975
Dimensions8.47 × 6.33 × 4.17 mm
L/W Ratio1.34
Girdle conditionVery Thick
Key to symbols
Crystal
Top View
8.47 mm6.33 mm1.50 ctG / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 1545745975
Side View
Table 63.0%Crown 39.46°Girdle: STK-VTKPavilion 40.49°Culet: NoneDepth 65.9%

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: Oct 31
Current: £6,691 GBP|Low: £3,750 GBP|High: £6,792 GBP|Avg: £4,611 GBP|-1.5%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£3,750 GBP
Retailer 2£3,781 GBP
Retailer 5£4,000 GBP
Retailer 6£4,000 GBP
Retailer 9£4,090 GBP
Retailer 10£4,094 GBP
Retailer 12£4,142 GBP
Retailer 3£4,314 GBP
Retailer 11£4,423 GBP
Retailer 4£4,516 GBP
Retailer 8£6,405 GBP
NZ Jewellers£6,691 GBP

32 data points across 12 retailers

8 retailers£3,750 GBP to £6,691 GBP

A
Cheapest Retailer
-
£3,750 GBP
$5,025 USD
A
Retailer 2
-
£3,781 GBP
View
A
Retailer 3
-
£4,000 GBP
$5,360 USD
View
A
Retailer 4
-
£4,000 GBP
$5,360 USD
View
A
Retailer 5
-
£4,090 GBP
$5,480 USD
View
Retailer 6
-
£4,094 GBP
A$8,439 AUD
View
Price last confirmed 22 days ago
B
Retailer 7
-
£6,405 GBP
View
Most Expensive
B+
NZ Jewellers
bafc5ccc-1899-48c2-b09b-ca8a4404c8cf · Oct 30
£6,691 GBP
$8,965 USD
View
7 more retailers have this diamond
Prices start from £3,750 GBPSave up to £2,941 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
£3,750 GBP