CaratHunter
Plans
Round|Natural|IGI

1.27ct I SI2 Round Natural Diamond

VG • I/SI2 • IGI 523290758

Shape and cutting style on the report: Round brilliant

Certificate IGI 523290758

Diamond specifications and retailer prices

From £1,854 GBP
$2,484 USD
As of October 30, 2026
Save £2,474 GBP (57%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £4,328 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 very-good cut grade and certified by IGI 523290758. Listed at 12 retailers as of October 30, 2026, with prices from £1,854 to £4,328, a £2,474 spread on the same certified stone. NZ Jewellers lists it at £4,328. 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
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle41.6°
OriginNatural
Grading LabIGI
CertificateIGI 523290758
Dimensions6.80 × 6.77 × 4.37 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Top View
6.80 mm6.77 mm1.27 ctI / SI2
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 523290758
Side View
Table 57.5%Crown 35.6°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 64.3%

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: Oct 30
Current: £4,328 GBP|Low: £1,751 GBP|High: £4,717 GBP|Avg: £2,626 GBP|-8.2%
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
October 30, 2026
Retailer 9£1,854 GBP
Retailer 7£1,884 GBP
Retailer 10£1,911 GBP
Retailer 12£2,070 GBP
Retailer 13£2,070 GBP
Retailer 3£2,093 GBP
Retailer 8£2,149 GBP
Retailer 11£2,388 GBP
Retailer 2£2,424 GBP
Retailer 4£2,685 GBP
Retailer 6£3,631 GBP
Retailer 5£3,645 GBP
NZ Jewellers£4,328 GBP

27 data points across 13 retailers

12 retailers£1,854 GBP to £4,328 GBP

A
Cheapest Retailer
-
£1,854 GBP
$2,484 USD
Retailer 2
-
£1,884 GBP
$2,525 USD
View
Price last confirmed 10 days ago
B+
Retailer 3
-
£1,911 GBP
$2,560 USD
View
Final sale: no returns
B+
Retailer 4
-
£2,070 GBP
$2,774 USD
View
B+
Retailer 5
-
£2,070 GBP
$2,774 USD
View
A
Retailer 6
-
£2,149 GBP
$2,880 USD
View
Retailer 7
-
£2,256 GBP
$3,023 USD
View
Price last confirmed 54 days ago
B+
Retailer 8
-
£2,388 GBP
$3,200 USD
View
A
Retailer 9
-
£2,424 GBP
€3,093 EUR
View
Retailer 10
-
£2,603 GBP
$3,488 USD
View
Price last confirmed 54 days ago
B
Retailer 11
-
£3,631 GBP
View
Most Expensive
B
NZ Jewellers
4cc9f96c-d8c8-4d2c-9a2a-53fa9ec43a4d · Oct 30
£4,328 GBP
$5,799 USD
View
11 more retailers have this diamond
Prices start from £1,854 GBPSave up to £2,474 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
1.27ct Round
£1,854 GBP