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Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 5553047733

Certificate GIA 5553047733

Diamond specifications and retailer prices

From £854 GBP
$1,144 USD
As of October 31, 2026
Save £1,026 GBP (55%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,880 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 0.77ct natural round diamond

This 0.77ct natural round sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 5553047733. Listed at 13 retailers as of October 29, 2026, with prices from £854 to £1,880, a £1,026 spread on the same certified stone. MOH London lists it at £1,880. 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
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5553047733
Dimensions5.91 × 5.87 × 3.58 mm
L/W Ratio1.01
Star length50%
Key to symbols
Crystal, Cloud, Feather
Top View
5.91 mm5.87 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5553047733
Side View
Table 60.0%Crown 33°Girdle: MED-STKPavilion 41°Culet: NoneDepth 60.8%

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: £1,880 GBP|Low: £711 GBP|High: £1,893 GBP|Avg: £1,296 GBP|+0.4%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 31, 2026
Retailer 5£854 GBP
Retailer 8£1,037 GBP
Retailer 3£1,131 GBP
Retailer 4£1,291 GBP
Retailer 6£1,332 GBP
Retailer 7£1,399 GBP
Retailer 2£1,525 GBP
MOH London£1,880 GBP

44 data points across 8 retailers

13 retailers£854 GBP to £1,880 GBP

A
Cheapest Retailer
-
£854 GBP
$1,144 USD
Final sale: no returns
A
Retailer 2
-
£886 GBP
$1,187 USD
View
A
Retailer 3
-
£888 GBP
$1,190 USD
View
B+
Retailer 4
-
£1,037 GBP
$1,390 USD
View
B+
Retailer 5
-
£1,105 GBP
$1,480 USD
View
B+
Retailer 6
-
£1,105 GBP
$1,480 USD
View
B+
Retailer 7
-
£1,131 GBP
View
B+
Retailer 8
-
£1,142 GBP
$1,530 USD
View
B+
Retailer 9
-
£1,291 GBP
View
Retailer 10
-
£1,332 GBP
A$2,746 AUD
View
Price last confirmed 25 days ago
B+
Retailer 11
-
£1,399 GBP
$1,874 USD
View
B
Retailer 12
-
£1,525 GBP
ZAR 33,001 ZAR
View
Most Expensive
B
MOH London
F2A1BE78D · Oct 29
£1,880 GBP
View
12 more retailers have this diamond
Prices start from £854 GBPSave up to £1,026 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
£854 GBP