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Round|Natural|IGI

0.77ct H SI2 Round Natural Diamond

EX • H/SI2 • IGI 687516838

Shape and cutting style on the report: Round brilliant

Certificate IGI 687516838

Diamond specifications and retailer prices

From £442 GBP
$592 USD
As of October 31, 2026
Save £1,060 GBP (71%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,502 GBP at NZ Jewellers · As of October 30, 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 H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI 687516838. Listed at 14 retailers as of October 30, 2026, with prices from £442 to £1,502, a £1,060 spread on the same certified stone. NZ Jewellers lists it at £1,502. 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
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
Crown angle32.7°
Pavilion angle40.7°
OriginNatural
Grading LabIGI
CertificateIGI 687516838
Dimensions5.97 × 5.94 × 3.59 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
5.97 mm5.94 mm0.77 ctH / SI2
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceStrong
CertificateIGI 687516838
Side View
Table 56.0%Crown 32.7°Girdle: MediumPavilion 40.7°Culet: NoneDepth 60.3%

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 31
Current: £707 GBP|Low: £405 GBP|High: £1,119 GBP|Avg: £642 GBP|+3.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 29, 2026
Retailer 5£442 GBP
Retailer 4£485 GBP
Retailer 7£516 GBP
Retailer 3£573 GBP
Retailer 9£656 GBP
Retailer 6£660 GBP
Retailer 8£697 GBP
Retailer 1£707 GBP
Retailer 2£1,108 GBP

25 data points across 9 retailers

14 retailers£442 GBP to £1,502 GBP

A
Cheapest Retailer
-
£442 GBP
$592 USD
Final sale: no returns
Retailer 2
-
£479 GBP
$642 USD
View
Price last confirmed 37 days ago
A
Retailer 3
-
£479 GBP
$642 USD
View
A
Retailer 4
-
£485 GBP
$650 USD
View
A
Retailer 5
-
£516 GBP
$691 USD
View
A
Retailer 6
-
£516 GBP
$691 USD
View
Retailer 7
-
£552 GBP
$740 USD
View
Price last confirmed 39 days ago
A
Retailer 8
-
£552 GBP
$740 USD
View
A
Retailer 9
-
£573 GBP
View
B+
Retailer 10
-
£660 GBP
$884 USD
View
A
Retailer 11
-
£707 GBP
€902 EUR
View
B+
Retailer 12
-
£1,108 GBP
View
Retailer 13
-
£1,502 GBP
$2,012 USD
View
Price last confirmed 34 days ago
Most Expensive
B
NZ Jewellers
b0b19158-216b-4641-af0a-942b13c30278 · Oct 30
£1,502 GBP
$2,012 USD
View
13 more retailers have this diamond
Prices start from £442 GBPSave up to £1,060 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
£442 GBP