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0.77ct F SI1 Round Natural Diamond

EX • F/SI1 • IGI 839658750

Shape and cutting style on the report: Round brilliant

Certificate IGI 839658750

Diamond specifications and retailer prices

From £611 GBP
₹78,033 INR
As of November 2, 2026
Save £1,350 GBP (69%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,961 GBP at NZ Jewellers · As of November 2, 2026
View at NZ Jewellers

About this 0.77ct natural round diamond

This 0.77ct natural round sits in the just-under-one-carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI 839658750. Listed at 9 retailers as of November 2, 2026, with prices from £611 to £1,961, a £1,350 spread on the same certified stone. NZ Jewellers lists it at £1,961. 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

0.77
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.6°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 839658750
Dimensions5.85 × 5.88 × 3.65 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
5.85 mm5.88 mm0.77 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI 839658750
Side View
Table 57.0%Crown 36.6°Girdle: MED-STKPavilion 40.7°CuletDepth 62.1%

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: Nov 2
Current: £1,961 GBP|Low: £611 GBP|High: £1,961 GBP|Avg: £1,023 GBP
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 3, 2026
Retailer 6£611 GBP
Retailer 4£804 GBP
Retailer 8£835 GBP
Retailer 2£905 GBP
Retailer 7£928 GBP
Retailer 3£969 GBP
Retailer 5£1,013 GBP
Retailer 9£1,074 GBP
NZ Jewellers£1,961 GBP

3 data points across 9 retailers

9 retailers£611 GBP to £1,961 GBP

A
Cheapest Retailer
-
£611 GBP
₹78,033 INR
A
Retailer 2
-
£804 GBP
$1,079 USD
View
A
Retailer 3
-
£835 GBP
$1,120 USD
View
A
Retailer 4
-
£905 GBP
$1,215 USD
View
A
Retailer 5
-
£928 GBP
$1,245 USD
View
A
Retailer 6
-
£969 GBP
View
A
Retailer 7
-
£1,013 GBP
View
B+
Retailer 8
-
£1,074 GBP
€1,372 EUR
View
Most Expensive
B
NZ Jewellers
09fd04d0-83e6-4e82-9f28-098b04cc9715 · Nov 2
£1,961 GBP
$2,631 USD
View
8 more retailers have this diamond
Prices start from £611 GBPSave up to £1,350 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
0.77ct Round
£611 GBP