Round|Natural|GIA

0.77ct F SI1 Round Natural Diamond

EX • F/SI1 • GIA 2554062192

Certificate GIA 2554062192

Diamond specifications and retailer prices

From £1,030 GBP
$1,380 USD
As of October 31, 2026
Save £861 GBP (46%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £2,502 GBP at NZ Jewellers · As of September 28, 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 GIA 2554062192. Listed at 18 retailers as of October 31, 2026, with a 84% 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

0.77
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 2554062192
Dimensions5.83 × 5.86 × 3.65 mm
L/W Ratio1.01
Star length50%
Top View
5.83 mm5.86 mm0.77 ctF / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2554062192
Side View
Table 56.0%Crown 35.5°GirdlePavilion 40.8°Culet: NoneDepth 62.4%

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: £1,346 GBP|Low: £1,025 GBP|High: £1,901 GBP|Avg: £1,276 GBP|+8.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 1, 2026
Retailer 7£1,025 GBP
Retailer 4£1,030 GBP
Retailer 8£1,030 GBP
Retailer 3£1,197 GBP
Retailer 6£1,338 GBP
Retailer 1£1,346 GBP
Retailer 5£1,528 GBP
Retailer 2£1,891 GBP

38 data points across 8 retailers

18 retailers£1,030 GBP to £1,891 GBP

Retailer 1
-
£1,025 GBP
$1,374 USD
Price last confirmed 55 days ago
Retailer 2
-
£1,025 GBP
$1,374 USD
View
Price last confirmed 45 days ago
Retailer 3
-
£1,025 GBP
$1,374 USD
View
Price last confirmed 25 days ago
Retailer 4
-
£1,025 GBP
$1,374 USD
View
Price last confirmed 25 days ago
A
Retailer 5
-
£1,030 GBP
$1,380 USD
View
A
Retailer 6
-
£1,030 GBP
$1,380 USD
View
Retailer 7
-
£1,073 GBP
$1,438 USD
View
Price last confirmed 33 days ago
Retailer 8
-
£1,184 GBP
$1,586 USD
View
Price last confirmed 56 days ago
Retailer 9
-
£1,184 GBP
$1,586 USD
View
Price last confirmed 40 days ago
Retailer 10
-
£1,184 GBP
$1,586 USD
View
Price last confirmed 33 days ago
B+
Retailer 11
-
£1,197 GBP
View
Retailer 12
-
£1,338 GBP
A$2,759 AUD
View
Price last confirmed 27 days ago
B+
Retailer 13
-
£1,346 GBP
€1,717 EUR
View
B+
Retailer 14
-
£1,528 GBP
ZAR 33,074 ZAR
View
B
Retailer 15
-
£1,891 GBP
View
Retailer 16
-
£2,502 GBP
$3,352 USD
View
Price last confirmed 61 days ago
Retailer 17
-
£2,502 GBP
$3,352 USD
View
Price last confirmed 41 days ago
Most Expensive
NZ Jewellers
acbb035c-ca01-458a-9892-88c3f90a0a3e · Sep 28
£2,502 GBP
$3,352 USD
View
Price last confirmed 34 days ago
17 more retailers have this diamond
Prices start from £1,030 GBPSave up to £861 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
£1,030 GBP