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Round|Natural|GIA

0.77ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 2547729568

Certificate GIA 2547729568

Diamond specifications and retailer prices

From £910 GBP
$1,219 USD
As of October 30, 2026
Save £652 GBP (42%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,562 GBP at Cape Diamonds · As of October 26, 2026
View at Cape Diamonds

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 2547729568. Listed at 14 retailers as of October 26, 2026, with prices from £910 to £1,562, a £652 spread on the same certified stone. Cape Diamonds lists it at £1,562. 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 angle36°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 2547729568
Dimensions5.83 × 5.86 × 3.64 mm
L/W Ratio1.01
Top View
5.83 mm5.86 mm0.77 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2547729568
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.2%

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 30
Current: £1,562 GBP|Low: £910 GBP|High: £1,569 GBP|Avg: £1,198 GBP|+2.4%
Cape Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12£910 GBP
Retailer 13£911 GBP
Retailer 9£1,064 GBP
Retailer 3£1,134 GBP
Retailer 4£1,134 GBP
Retailer 2£1,162 GBP
Retailer 5£1,172 GBP
Retailer 10£1,226 GBP
Retailer 7£1,280 GBP
Retailer 6£1,328 GBP
Retailer 8£1,436 GBP
Retailer 11£1,454 GBP
Cape Diamonds£1,562 GBP

42 data points across 13 retailers

14 retailers£910 GBP to £1,562 GBP

A
Cheapest Retailer
-
£910 GBP
$1,219 USD
A
Retailer 2
-
£911 GBP
$1,220 USD
View
B+
Retailer 3
-
£1,064 GBP
$1,426 USD
View
B+
Retailer 4
-
£1,134 GBP
$1,520 USD
View
B+
Retailer 5
-
£1,134 GBP
$1,520 USD
View
B+
Retailer 6
-
£1,162 GBP
View
B+
Retailer 7
-
£1,172 GBP
$1,570 USD
View
B+
Retailer 8
-
£1,226 GBP
A$2,528 AUD
View
B
Retailer 9
-
£1,280 GBP
View
B
Retailer 10
-
£1,313 GBP
$1,759 USD
View
B
Retailer 11
-
£1,328 GBP
€1,695 EUR
View
B
Retailer 12
-
£1,436 GBP
$1,924 USD
View
B
Retailer 13
-
£1,454 GBP
$1,948 USD
View
Most Expensive
B
Cape Diamonds
cert_2547729568 · Oct 26
£1,562 GBP
ZAR 33,805 ZAR
View
13 more retailers have this diamond
Prices start from £910 GBPSave up to £652 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
£910 GBP