CaratHunter
Plans
Oval|Natural|GIA

1.21ct E SI1 Oval Natural Diamond

EX • E/SI1 • GIA 2567610578

Certificate GIA 2567610578

Diamond specifications and retailer prices

From £2,596 GBP
As of November 5, 2026
Save £501 GBP (16%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: £3,097 GBP at Blue Nile · As of November 5, 2026
View at Blue Nile

About this 1.21ct natural oval diamond

This 1.21ct natural oval sits in the classic one-carat band, graded E 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 2567610578. Listed at 4 retailers as of November 5, 2026, with prices from £2,596 to £3,097, a £501 spread on the same certified stone. Blue Nile lists it at £3,097. 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
E
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2567610578
Dimensions8.32 × 5.95 × 3.77 mm
L/W Ratio1.40
Top View
8.32 mm5.95 mm1.21 ctE / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceFaint
CertificateGIA 2567610578
Side View
Table 63.0%CrownGirdle: MED-THKPavilionCulet: NoneDepth 63.3%

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: £3,097 GBP|Low: £2,596 GBP|High: £3,097 GBP|Avg: £2,803 GBP
Blue Nile
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 3£2,596 GBP
Retailer 4£2,746 GBP
Retailer 2£2,768 GBP
Blue Nile£3,097 GBP

6 data points across 4 retailers

4 retailers£2,596 GBP to £3,097 GBP

A
Cheapest Retailer
-
£2,596 GBP
B+
Retailer 2
-
£2,746 GBP
View
B+
Retailer 3
-
£2,768 GBP
View
Most Expensive
B+
Blue Nile
30546114 · Nov 5
£3,097 GBP
$4,145 USD
View
3 more retailers have this diamond
Prices start from £2,596 GBPSave up to £501 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
1.21ct Oval
£2,596 GBP