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Round|Natural|IGI

2.51ct G SI2 Round Natural Diamond

VG • G/SI2 • IGI 835613860

Shape and cutting style on the report: Round brilliant

Certificate IGI 835613860

Diamond specifications and retailer prices

From £6,292 GBP
$8,430 USD
As of October 30, 2026
Save £5,884 GBP (48%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £12,176 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 2.51ct natural round diamond

This 2.51ct natural round sits in the two to three carat band, graded G colour (near-colourless) and SI2 clarity (slightly-included), with a very-good cut grade and certified by IGI 835613860. Listed at 15 retailers as of October 30, 2026, with prices from £6,292 to £12,176, a £5,884 spread on the same certified stone. NZ Jewellers lists it at £12,176. 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

2.51
Carat
G
Colour
SI2
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle41.7°
OriginNatural
Grading LabIGI
CertificateIGI 835613860
Dimensions8.47 × 8.52 × 5.46 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
8.47 mm8.52 mm2.51 ctG / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 835613860
Side View
Table 61.0%Crown 37.1°Girdle: STK-THKPavilion 41.7°Culet: NoneDepth 64.3%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £12,176 GBP|Low: £5,292 GBP|High: £12,176 GBP|Avg: £7,562 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 2£5,306 GBP
Retailer 4£6,292 GBP
Retailer 5£6,454 GBP
Retailer 12£6,720 GBP
Retailer 8£7,025 GBP
Retailer 6£7,113 GBP
Retailer 3£7,280 GBP
Retailer 11£7,281 GBP
Retailer 13£7,392 GBP
Retailer 10£7,443 GBP
Retailer 7£7,562 GBP
Retailer 14£8,399 GBP
Retailer 9£10,200 GBP
NZ Jewellers£12,176 GBP

15 data points across 14 retailers

15 retailers£6,292 GBP to £12,176 GBP

Retailer 1
-
£5,306 GBP
₹677,031 INR
Price under review
A
Retailer 2
-
£6,292 GBP
$8,430 USD
View
A
Retailer 3
-
£6,454 GBP
$8,648 USD
View
A
Retailer 4
-
£6,720 GBP
$9,004 USD
View
A
Retailer 5
-
£7,025 GBP
View
A
Retailer 6
-
£7,113 GBP
$9,530 USD
View
A
Retailer 7
-
£7,232 GBP
$9,690 USD
View
A
Retailer 8
-
£7,280 GBP
$9,754 USD
View
A
Retailer 9
-
£7,281 GBP
$9,756 USD
View
A
Retailer 10
-
£7,392 GBP
$9,904 USD
View
A
Retailer 11
-
£7,443 GBP
$9,973 USD
View
A
Retailer 12
-
£7,562 GBP
€9,650 EUR
View
B+
Retailer 13
-
£8,399 GBP
$11,254 USD
View
A
Retailer 14
-
£10,200 GBP
View
Most Expensive
B+
NZ Jewellers
fc532552-2595-462d-85e1-9a4f50fe25a9 · Oct 30
£12,176 GBP
$16,314 USD
View
14 more retailers have this diamond
Prices start from £6,292 GBPSave up to £5,884 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
£6,292 GBP