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Oval|Natural|GIA

1.50ct L SI1 Oval Natural Diamond

ID • L/SI1 • GIA 6552638344

Certificate GIA 6552638344

Diamond specifications and retailer prices

From £1,635 GBP
As of November 5, 2026
Save £625 GBP (28%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £3,784 GBP at NZ Jewellers · As of October 20, 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 6552638344. Listed at 12 retailers as of November 2, 2026, with a 38% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6552638344
Dimensions9.02 × 6.36 × 4.06 mm
L/W Ratio1.42
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Twinning Wisp, Crystal, Cavity, Needle
Top View
9.02 mm6.36 mm1.50 ctL / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6552638344
Side View
Table 58.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 63.8%

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: Nov 5
Current: £3,784 GBP|Low: £1,635 GBP|High: £3,898 GBP|Avg: £2,132 GBP|-2.9%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 4£1,635 GBP
Retailer 8£1,682 GBP
Retailer 7£1,801 GBP
Retailer 9£1,810 GBP
Retailer 10£1,880 GBP
Retailer 2£1,915 GBP
Retailer 6£2,089 GBP
Retailer 3£2,209 GBP
Retailer 5£2,260 GBP
NZ Jewellers£3,784 GBP

35 data points across 10 retailers

12 retailers£1,635 GBP to £2,260 GBP

A
Cheapest Retailer
-
£1,635 GBP
A
Retailer 2
-
£1,682 GBP
View
B+
Retailer 3
-
£1,801 GBP
View
Retailer 4
-
£1,810 GBP
View
Price last confirmed 21 days ago
Retailer 5
-
£1,810 GBP
View
Price last confirmed 15 days ago
B+
Retailer 6
-
£1,880 GBP
View
Retailer 7
-
£1,894 GBP
View
Price last confirmed 21 days ago
B+
Retailer 8
-
£1,915 GBP
View
Retailer 9
-
£2,089 GBP
View
Price last confirmed 16 days ago
B+
Retailer 10
-
£2,209 GBP
View
B+
Retailer 11
-
£2,260 GBP
View
Most Expensive
NZ Jewellers
6f206cb3-e7e2-4bc8-9271-148bc1ed6cb0 · Oct 20
£3,784 GBP
$5,065 USD
View
Price last confirmed 16 days ago
11 more retailers have this diamond
Prices start from £1,635 GBPSave up to £625 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
£1,635 GBP