Oval|Natural|GIA

0.77ct I SI1 Oval Natural Diamond

ID • I/SI1 • GIA 6545515924

Certificate GIA 6545515924

Diamond specifications and retailer prices

From £856 GBP
$1,147 USD
As of October 30, 2026
Save £854 GBP (50%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £2,264 GBP at NZ Jewellers · As of September 19, 2026
View at NZ Jewellers

About this 0.77ct natural oval diamond

This 0.77ct natural oval sits in the just-under-one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 6545515924. Listed at 15 retailers as of October 29, 2026, with a 100% 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
I
Colour
SI1
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6545515924
Dimensions7.26 × 5.10 × 3.23 mm
L/W Ratio1.42
Top View
7.26 mm5.10 mm0.77 ctI / SI1
OriginNatural
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6545515924
Side View
Table 60.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 63.4%

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 30
Current: £1,710 GBP|Low: £684 GBP|High: £1,721 GBP|Avg: £1,120 GBP|+0.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
October 29, 2026
Retailer 5£856 GBP
Retailer 8£892 GBP
Retailer 7£928 GBP
Retailer 3£952 GBP
Retailer 6£1,214 GBP
Retailer 2£1,295 GBP
Retailer 4£1,383 GBP
Retailer 1£1,710 GBP

33 data points across 8 retailers

15 retailers£856 GBP to £1,710 GBP

A
Cheapest Retailer
-
£856 GBP
$1,147 USD
Final sale: no returns
A
Retailer 2
-
£890 GBP
$1,192 USD
View
A
Retailer 3
-
£892 GBP
$1,195 USD
View
Retailer 4
-
£928 GBP
$1,244 USD
View
Price last confirmed 49 days ago
Retailer 5
-
£928 GBP
$1,244 USD
View
Price last confirmed 38 days ago
B+
Retailer 6
-
£952 GBP
View
B+
Retailer 7
-
£1,029 GBP
$1,379 USD
View
B+
Retailer 8
-
£1,031 GBP
$1,381 USD
View
Retailer 9
-
£1,071 GBP
$1,435 USD
View
Price last confirmed 54 days ago
Retailer 10
-
£1,071 GBP
$1,435 USD
View
Price last confirmed 38 days ago
Retailer 11
-
£1,214 GBP
A$2,503 AUD
View
Price last confirmed 26 days ago
B+
Retailer 12
-
£1,295 GBP
€1,653 EUR
View
B
Retailer 13
-
£1,383 GBP
ZAR 29,940 ZAR
View
B
Retailer 14
-
£1,710 GBP
View
Most Expensive
NZ Jewellers
5185b3f3-f33a-4d0f-aa99-430ad0f1c0a5 · Sep 19
£2,264 GBP
$3,034 USD
View
Price last confirmed 41 days ago
14 more retailers have this diamond
Prices start from £856 GBPSave up to £854 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 Oval
£856 GBP