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Round|Natural|IGI

1.27ct I SI2 Round Natural Diamond

GD • I/SI2 • IGI f1p45634

Certificate IGI f1p45634

Diamond specifications and retailer prices

From £2,459 GBP
$3,295 USD
As of October 30, 2026
1 retailer carries this diamond
Only listing: £2,459 GBP at Brilliance
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 Brilliance

About this 1.27ct natural round diamond

This 1.27ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and SI2 clarity (slightly-included), with a standard cut grade and certified by IGI f1p45634. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.27
Carat
I
Colour
SI2
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
OriginNatural
Grading LabIGI
CertificateIGI f1p45634
Dimensions6.87 × 6.76 mm
L/W Ratio1.02
Top View
6.87 mm6.76 mm1.27 ctI / SI2
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceVery Strong
CertificateIGI f1p45634
Side View
TableCrownGirdlePavilionCuletDepth

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: £2,459 GBP|Low: £2,399 GBP|High: £2,459 GBP|Avg: £2,429 GBP|+2.5%
October 1, 2026
Brilliance£2,459 GBP

2 data points across 1 retailer

1 retailer

B
Brilliance
D32396792 · Oct 30
£2,459 GBP
$3,295 USD
View

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B
1.27ct Round
£2,459 GBP