Round|Natural|GIA

0.80ct G SI1 Round Natural Diamond

EX • G/SI1 • GIA 6491170357

Certificate GIA 6491170357

Diamond specifications and retailer prices

From £764 GBP
HK$8,000 HKD
As of October 31, 2026
Save £1,709 GBP (69%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £2,540 GBP at NZ Jewellers · As of October 9, 2026
View at NZ Jewellers

About this 0.8ct natural round diamond

This 0.8ct natural round sits in the just-under-one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6491170357. Listed at 20 retailers as of October 29, 2026, with a 224% 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

0.80
Carat
G
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.5°
Pavilion angle40.6°
OriginNatural
Grading LabGIA
CertificateGIA 6491170357
Dimensions5.89 × 5.85 × 3.70 mm
L/W Ratio1.01
Star length55%
Lower girdle75%
Top View
5.89 mm5.85 mm0.80 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateGIA 6491170357
Side View
Table 56.0%Crown 36.5°Girdle: THN-STKPavilion 40.6°Culet: NoneDepth 63.0%

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: £764 GBP|Low: £755 GBP|High: £1,931 GBP|Avg: £1,207 GBP|-3.6%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
Retailer 16
October 31, 2026
Retailer 1£764 GBP
Retailer 16£952 GBP
Retailer 8£966 GBP
Retailer 2£970 GBP
Retailer 14£1,019 GBP
Retailer 9£1,041 GBP
Retailer 5£1,084 GBP
Retailer 6£1,096 GBP
Retailer 13£1,223 GBP
Retailer 15£1,291 GBP
Retailer 11£1,304 GBP
Retailer 3£1,359 GBP
Retailer 10£1,439 GBP
Retailer 7£1,457 GBP
Retailer 4£1,543 GBP
Retailer 12£1,892 GBP

32 data points across 16 retailers

20 retailers£764 GBP to £2,474 GBP

A
Cheapest Retailer
-
£764 GBP
HK$8,000 HKD
A
Retailer 2
-
£952 GBP
$1,276 USD
View
Final sale: no returns
Retailer 3
-
£966 GBP
$1,294 USD
View
Price last confirmed 26 days ago
Retailer 4
-
£970 GBP
$1,300 USD
View
Price last confirmed 24 days ago
A
Retailer 5
-
£1,019 GBP
SGD 1,845 SGD
View
A
Retailer 6
-
£1,041 GBP
View
Retailer 7
-
£1,041 GBP
$1,395 USD
View
Price last confirmed 23 days ago
Retailer 8
-
£1,061 GBP
SGD 1,922 SGD
View
Price last confirmed 23 days ago
Retailer 9
-
£1,090 GBP
$1,460 USD
View
Price last confirmed 32 days ago
Retailer 10
-
£1,096 GBP
$1,469 USD
View
Price last confirmed 24 days ago
B+
Retailer 11
-
£1,223 GBP
View
B+
Retailer 12
-
£1,291 GBP
$1,730 USD
View
B+
Retailer 13
-
£1,304 GBP
View
Retailer 14
-
£1,359 GBP
A$2,801 AUD
View
Price last confirmed 25 days ago
B+
Retailer 15
-
£1,439 GBP
€1,836 EUR
View
B+
Retailer 16
-
£1,457 GBP
$1,952 USD
View
Retailer 17
-
£1,543 GBP
ZAR 33,405 ZAR
View
Price last confirmed 27 days ago
B
Retailer 18
-
£1,892 GBP
View
B
Retailer 19
-
£2,474 GBP
View
Most Expensive
NZ Jewellers
1fd59f11-2d4d-452d-9cf4-9483c6419311 · Oct 9
£2,540 GBP
$3,403 USD
View
Price last confirmed 22 days ago
19 more retailers have this diamond
Prices start from £764 GBPSave up to £1,709 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
0.80ct Round
£764 GBP