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2.51ct E SI2 Round Natural Diamond

EX • E/SI2 • IGI 803677829

Shape and cutting style on the report: Round brilliant

Certificate IGI 803677829

Diamond specifications and retailer prices

From £8,210 GBP
SGD 14,865 SGD
As of October 29, 2026
Save £2,343 GBP (22%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £10,552 GBP at The Diamond Guys · As of October 29, 2026
View at The Diamond Guys

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 803677829. Listed at 7 retailers as of October 29, 2026, with prices from £8,210 to £10,552, a £2,343 spread on the same certified stone. The Diamond Guys lists it at £10,552. 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

2.51
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.2°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 803677829
Dimensions8.80 × 8.84 × 5.15 mm
L/W Ratio1.00
Girdle conditionFaceted
Top View
8.80 mm8.84 mm2.51 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 803677829
Side View
Table 60.0%Crown 32.2°Girdle: MED-STKPavilion 40.1°Culet: NoneDepth 58.4%

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: Oct 29
Current: £9,727 GBP|Low: £8,210 GBP|High: £12,318 GBP|Avg: £10,046 GBP|-5.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
The Diamond Guys
October 30, 2026
Retailer 3£8,210 GBP
Retailer 2£8,384 GBP
Retailer 6£8,538 GBP
Retailer 5£9,634 GBP
Retailer 1£9,727 GBP
Retailer 4£10,316 GBP
The Diamond Guys£10,552 GBP
Retailer 7£12,318 GBP

32 data points across 8 retailers

7 retailers£8,210 GBP to £10,552 GBP

A
Cheapest Retailer
-
£8,210 GBP
SGD 14,865 SGD
A
Retailer 2
-
£8,384 GBP
$11,233 USD
View
Retailer 3
-
£8,538 GBP
$11,440 USD
View
Price last confirmed 12 days ago
A
Retailer 4
-
£9,634 GBP
$12,909 USD
View
A
Retailer 5
-
£9,727 GBP
€12,412 EUR
View
A
Retailer 6
-
£10,316 GBP
$13,822 USD
View
Most Expensive
A
The Diamond Guys
1966792132 · Oct 29
£10,552 GBP
$14,139 USD
View
6 more retailers have this diamond
Prices start from £8,210 GBPSave up to £2,343 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
2.51ct Round
£8,210 GBP