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Oval|Natural|GIA

1.54ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2245034437

Certificate GIA 2245034437

Diamond specifications and retailer prices

From £3,257 GBP
As of November 5, 2026
Save £2,177 GBP (40%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £6,181 GBP at NZ Jewellers · As of September 30, 2026
View at NZ Jewellers

About this 1.54ct natural oval diamond

This 1.54ct natural oval sits in the one-and-a-half to two carat band, graded K 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 2245034437. Listed at 10 retailers as of November 2, 2026, with a 67% 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

1.54
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2245034437
Dimensions8.81 × 6.33 × 4.10 mm
L/W Ratio1.39
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Twinning Wisp, Crystal, Feather, Needle
Top View
8.81 mm6.33 mm1.54 ctK / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245034437
Side View
Table 58.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 64.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: £3,359 GBP|Low: £3,228 GBP|High: £5,718 GBP|Avg: £4,102 GBP|-2.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
November 4, 2026
Retailer 5£3,257 GBP
Retailer 1£3,359 GBP
Retailer 2£3,846 GBP
Retailer 4£4,194 GBP
Retailer 3£5,434 GBP

43 data points across 5 retailers

10 retailers£3,257 GBP to £5,434 GBP

B+
Cheapest Retailer
-
£3,257 GBP
B+
Retailer 2
-
£3,359 GBP
View
Retailer 3
-
£3,548 GBP
View
Price last confirmed 38 days ago
Retailer 4
-
£3,548 GBP
View
Price last confirmed 29 days ago
Retailer 5
-
£3,548 GBP
View
Price last confirmed 29 days ago
B+
Retailer 6
-
£3,846 GBP
View
Retailer 7
-
£4,093 GBP
View
Price last confirmed 38 days ago
B
Retailer 8
-
£4,194 GBP
View
B
Retailer 9
-
£5,434 GBP
View
Most Expensive
NZ Jewellers
7b5bde94-d37c-42e7-9af4-99289232ae49 · Sep 30
£6,181 GBP
$8,273 USD
View
Price last confirmed 37 days ago
9 more retailers have this diamond
Prices start from £3,257 GBPSave up to £2,177 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.

B+
1.54ct Oval
£3,257 GBP