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Oval|Natural|GIA

1.53ct K SI1 Oval Natural Diamond

ID • K/SI1 • GIA 3

Certificate GIA 3

Diamond specifications and retailer prices

From £4,566 GBP
As of November 6, 2026
Save £1,190 GBP (21%) vs most expensive(unlock to see where)
3 retailers carry this diamond
Most expensive: £5,756 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.53ct natural oval diamond

This 1.53ct 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. Listed at 3 retailers as of November 5, 2026, with prices from £4,566 to £5,756, a £1,190 spread on the same certified stone. Blue Nile lists it at £5,756. 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

1.53
Carat
K
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishVery Good
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 3
Dimensions9.07 × 6.62 × 3.91 mm
L/W Ratio1.37
Top View
9.07 mm6.62 mm1.53 ctK / SI1
OriginNatural
CutIdeal
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 3
Side View
Table 52.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.0%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: £5,756 GBP|Low: £4,566 GBP|High: £5,756 GBP|Avg: £4,949 GBP
Blue Nile
Retailer 2
Retailer 3
September 26, 2026
Retailer 2£4,566 GBP
Retailer 3£4,929 GBP
Blue Nile£5,756 GBP

2 data points across 3 retailers

3 retailers£4,566 GBP to £5,756 GBP

B
Cheapest Retailer
-
£4,566 GBP
B
Retailer 2
-
£4,929 GBP
View
Most Expensive
B
Blue Nile
15106011 · Nov 5
£5,756 GBP
$7,704 USD
View
2 more retailers have this diamond
Prices start from £4,566 GBPSave up to £1,190 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
1.53ct Oval
£4,566 GBP