CaratHunter
Plans
Round|Natural|IGI

0.90ct I I1 Round Natural Diamond

GD • I/I1 • IGI 310862811

Shape and cutting style on the report: Round brilliant

Certificate IGI 310862811

Diamond specifications and retailer prices

From £604 GBP
$809 USD
As of October 29, 2026
Save £1,289 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,893 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 0.9ct natural round diamond

This 0.9ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and I1 clarity (included), with a standard cut grade and certified by IGI 310862811. Listed at 9 retailers as of October 30, 2026, with prices from £604 to £1,893, a £1,289 spread on the same certified stone. NZ Jewellers lists it at £1,893. 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

0.90
Carat
I
Colour
I1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.7°
Pavilion angle41.1°
OriginNatural
Grading LabIGI
CertificateIGI 310862811
Dimensions5.93 × 5.96 × 3.95 mm
L/W Ratio1.01
Culet sizePointed
Cert comments
undefined
Top View
5.93 mm5.96 mm0.90 ctI / I1
OriginNatural
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 310862811
Side View
Table 56.0%Crown 37.7°Girdle: ThickPavilion 41.1°Culet: NoneDepth 66.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £853 GBP|Low: £401 GBP|High: £864 GBP|Avg: £703 GBP|+2.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£401 GBP
Retailer 4£612 GBP
Retailer 2£633 GBP
Retailer 1£853 GBP
Retailer 3£862 GBP
Retailer 5£864 GBP

17 data points across 6 retailers

9 retailers£604 GBP to £1,893 GBP

B+
Cheapest Retailer
-
£604 GBP
$809 USD
B+
Retailer 2
-
£604 GBP
$809 USD
View
B+
Retailer 3
-
£612 GBP
$820 USD
View
B+
Retailer 4
-
£627 GBP
$840 USD
View
B+
Retailer 5
-
£633 GBP
$848 USD
View
B+
Retailer 6
-
£696 GBP
$933 USD
View
B+
Retailer 7
-
£853 GBP
€1,089 EUR
View
B+
Retailer 8
-
£864 GBP
$1,158 USD
View
Most Expensive
C
NZ Jewellers
dbdab6a3-eb42-4f88-baf6-60570dad6b1f · Oct 30
£1,893 GBP
$2,536 USD
View
8 more retailers have this diamond
Prices start from £604 GBPSave up to £1,289 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.

B+
0.90ct Round
£604 GBP