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Oval|Natural|GIA

1.21ct K SI1 Oval Natural Diamond

EX • K/SI1 • GIA 2235758974

Certificate GIA 2235758974

Diamond specifications and retailer prices

From £1,150 GBP
$1,539 USD
As of November 6, 2026
1 retailer carries this diamond
Only listing: £1,150 GBP at The Diamond Guys
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at The Diamond Guys

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-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 2235758974. Listed at a single retailer as of November 6, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. 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

1.21
Carat
K
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
Crown angle39.96°
Pavilion angle40.14°
OriginNatural
Grading LabGIA
CertificateGIA 2235758974
Dimensions8.39 × 5.94 × 3.71 mm
L/W Ratio1.41
Culet sizeNone
Top View
8.39 mm5.94 mm1.21 ctK / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2235758974
Side View
Table 59.0%Crown 39.96°Girdle: STK-THKPavilion 40.14°Culet: NoneDepth 62.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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Price History

Last verified: Nov 6
Current: £968 GBP|Low: £717 GBP|High: £1,869 GBP|Avg: £1,279 GBP|-16.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
The Diamond Guys
August 19, 2026
Retailer 4£717 GBP
Retailer 1£968 GBP
Retailer 7£1,105 GBP
The Diamond Guys£1,150 GBP
Retailer 3£1,161 GBP
Retailer 8£1,170 GBP
Retailer 5£1,223 GBP
Retailer 2£1,346 GBP
Retailer 9£1,722 GBP
Retailer 6£1,782 GBP

67 data points across 10 retailers

1 retailer

B+
The Diamond Guys
1959626146 · Nov 6
£1,150 GBP
$1,539 USD
View

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+
1.21ct Oval
£1,150 GBP