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Oval|Natural|GIA

1.50ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 5546387555

Certificate GIA 5546387555

Diamond specifications and retailer prices

From £4,976 GBP
As of November 5, 2026
Save £1,385 GBP (22%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £6,361 GBP at GemTrove · As of November 6, 2026
View at GemTrove

About this 1.5ct natural oval diamond

This 1.5ct natural oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 5546387555. Listed at 8 retailers as of November 5, 2026, with prices from £4,976 to £6,361, a £1,385 spread on the same certified stone. GemTrove lists it at £6,361. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 5546387555
Dimensions8.76 × 6.50 × 4.11 mm
L/W Ratio1.35
Top View
8.76 mm6.50 mm1.50 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 5546387555
Side View
Table 59.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 63.3%

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 5
Current: £5,025 GBP|Low: £4,713 GBP|High: £6,368 GBP|Avg: £5,442 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 6, 2026
Retailer 3£4,976 GBP
Retailer 1£5,025 GBP
Retailer 4£5,139 GBP
Retailer 2£5,240 GBP
Retailer 5£5,349 GBP
Retailer 7£5,461 GBP
Retailer 6£6,028 GBP

46 data points across 7 retailers

8 retailers£4,976 GBP to £6,361 GBP

A
Cheapest Retailer
-
£4,976 GBP
A
Retailer 2
-
£5,025 GBP
View
A
Retailer 3
-
£5,139 GBP
View
A
Retailer 4
-
£5,240 GBP
View
A
Retailer 5
-
£5,349 GBP
View
Final sale: no returns
A
Retailer 6
-
£5,461 GBP
View
B+
Retailer 7
-
£6,028 GBP
View
Most Expensive
B+
GemTrove
GT-N-01286299-98 · Nov 6
£6,361 GBP
A$13,098 AUD
View
7 more retailers have this diamond
Prices start from £4,976 GBPSave up to £1,385 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
£4,976 GBP