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Round|Natural|IGI

0.90ct G I1 Round Natural Diamond

VG • G/I1 • IGI 279773857

Shape and cutting style on the report: Round brilliant

Certificate IGI 279773857

Diamond specifications and retailer prices

From £635 GBP
$851 USD
As of October 29, 2026
Save £1,358 GBP (68%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,993 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 G colour (near-colourless) and I1 clarity (included), with a very-good cut grade and certified by IGI 279773857. Listed at 9 retailers as of October 30, 2026, with prices from £635 to £1,993, a £1,358 spread on the same certified stone. NZ Jewellers lists it at £1,993. 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
G
Colour
I1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.1°
Pavilion angle40.1°
OriginNatural
Grading LabIGI
CertificateIGI 279773857
Dimensions6.13 × 6.18 × 3.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
6.13 mm6.18 mm0.90 ctG / I1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 279773857
Side View
Table 64.5%Crown 36.1°Girdle: STK-THKPavilion 40.1°Culet: NoneDepth 60.1%

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: £897 GBP|Low: £422 GBP|High: £911 GBP|Avg: £740 GBP|+2.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 6£422 GBP
Retailer 4£643 GBP
Retailer 2£667 GBP
Retailer 1£897 GBP
Retailer 3£907 GBP
Retailer 5£911 GBP

13 data points across 6 retailers

9 retailers£635 GBP to £1,993 GBP

B+
Cheapest Retailer
-
£635 GBP
$851 USD
B+
Retailer 2
-
£635 GBP
$851 USD
View
B+
Retailer 3
-
£643 GBP
$862 USD
View
B+
Retailer 4
-
£660 GBP
$884 USD
View
B+
Retailer 5
-
£667 GBP
$894 USD
View
B+
Retailer 6
-
£733 GBP
$982 USD
View
B+
Retailer 7
-
£897 GBP
€1,145 EUR
View
B+
Retailer 8
-
£911 GBP
$1,221 USD
View
Most Expensive
C
NZ Jewellers
fb5b5652-9824-49b4-8c3a-7bdc3816f053 · Oct 30
£1,993 GBP
$2,670 USD
View
8 more retailers have this diamond
Prices start from £635 GBPSave up to £1,358 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
£635 GBP