Round|Natural|IGI

0.65ct F SI1 Round Natural Diamond

EX • F/SI1 • IGI 795661081

Shape and cutting style on the report: Round brilliant

Certificate IGI 795661081

Diamond specifications and retailer prices

From £445 GBP
₹56,850 INR
As of October 29, 2026
Save £1,418 GBP (76%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £1,981 GBP at NZ Jewellers · As of September 15, 2026
View at NZ Jewellers

About this 0.65ct natural round diamond

This 0.65ct natural round sits in the half to three-quarter carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 795661081. Listed at 24 retailers as of October 29, 2026, with a 319% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

0.65
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle41.2°
OriginNatural
Grading LabIGI
CertificateIGI 795661081
Dimensions5.46 × 5.49 × 3.43 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.46 mm5.49 mm0.65 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 795661081
Side View
Table 57.0%Crown 36.3°Girdle: MED-STKPavilion 41.2°Culet: NoneDepth 62.9%

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: £1,863 GBP|Low: £443 GBP|High: £1,902 GBP|Avg: £772 GBP|-2.1%
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
Retailer 15
October 31, 2026
Retailer 10£445 GBP
Retailer 7£548 GBP
Retailer 5£594 GBP
Retailer 13£594 GBP
Retailer 2£596 GBP
Retailer 14£603 GBP
Retailer 3£617 GBP
Retailer 11£686 GBP
Retailer 4£693 GBP
Retailer 15£705 GBP
Retailer 9£733 GBP
Retailer 8£774 GBP
Retailer 12£885 GBP
Retailer 6£1,089 GBP
NZ Jewellers£1,863 GBP

24 data points across 15 retailers

24 retailers£445 GBP to £1,863 GBP

A
Cheapest Retailer
-
£445 GBP
₹56,850 INR
Retailer 2
-
£537 GBP
$721 USD
View
Price last confirmed 58 days ago
A
Retailer 3
-
£594 GBP
$797 USD
View
A
Retailer 4
-
£594 GBP
$797 USD
View
A
Retailer 5
-
£596 GBP
$800 USD
View
A
Retailer 6
-
£603 GBP
$809 USD
View
A
Retailer 7
-
£617 GBP
$828 USD
View
Retailer 8
-
£620 GBP
$832 USD
View
Price last confirmed 56 days ago
Retailer 9
-
£628 GBP
$843 USD
View
Price last confirmed 39 days ago
Retailer 10
-
£631 GBP
$847 USD
View
Price last confirmed 48 days ago
A
Retailer 11
-
£686 GBP
$920 USD
View
A
Retailer 12
-
£693 GBP
$930 USD
View
A
Retailer 13
-
£705 GBP
View
Retailer 14
-
£729 GBP
$978 USD
View
Price last confirmed 49 days ago
Retailer 15
-
£729 GBP
$978 USD
View
Price last confirmed 41 days ago
B+
Retailer 16
-
£733 GBP
View
B+
Retailer 17
-
£774 GBP
€989 EUR
View
Retailer 18
-
£885 GBP
ZAR 19,189 ZAR
View
Price last confirmed 7 days ago
Retailer 19
-
£1,089 GBP
View
Price last confirmed 7 days ago
B
Retailer 20
-
£1,296 GBP
CA$2,415 CAD
View
Retailer 21
-
£1,611 GBP
$2,162 USD
View
Price last confirmed 61 days ago
B
Retailer 22
-
£1,863 GBP
$2,500 USD
View
Retailer 23
-
£1,971 GBP
$2,645 USD
View
Price last confirmed 39 days ago
Most Expensive
NZ Jewellers
1d981605-fdba-43f8-a809-f5689040860c · Sep 15
£1,981 GBP
$2,658 USD
View
Price last confirmed 48 days ago
23 more retailers have this diamond
Prices start from £445 GBPSave up to £1,418 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
0.65ct Round
£445 GBP