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Round|Natural|GIA

1.00ct E SI2 Round Natural Diamond

EX • E/SI2 • GIA 7568026144

Certificate GIA 7568026144

Diamond specifications and retailer prices

From £1,309 GBP
HK$13,700 HKD
As of October 29, 2026
Save £1,762 GBP (57%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £3,836 GBP at NZ Jewellers · As of October 6, 2026
View at NZ Jewellers

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7568026144. Listed at 20 retailers as of October 29, 2026, with a 135% 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
Crown angle36°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 7568026144
Dimensions6.31 × 6.36 × 3.96 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.31 mm6.36 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 7568026144
Side View
Table 58.0%Crown 36°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 62.5%

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 29
Current: £2,131 GBP|Low: £1,309 GBP|High: £4,485 GBP|Avg: £1,971 GBP|-5.2%
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
October 29, 2026
Retailer 13£1,309 GBP
Retailer 6£1,394 GBP
Retailer 10£1,427 GBP
Retailer 2£1,458 GBP
Retailer 14£1,464 GBP
Retailer 7£1,548 GBP
Retailer 5£1,802 GBP
Retailer 3£1,829 GBP
Retailer 4£1,829 GBP
Retailer 11£1,888 GBP
Retailer 12£1,891 GBP
Retailer 9£2,038 GBP
Retailer 1£2,131 GBP
Retailer 8£3,071 GBP

34 data points across 14 retailers

20 retailers£1,309 GBP to £3,071 GBP

A
Cheapest Retailer
-
£1,309 GBP
HK$13,700 HKD
Retailer 2
-
£1,394 GBP
₹177,930 INR
View
Price last confirmed 15 days ago
A
Retailer 3
-
£1,427 GBP
$1,912 USD
View
A
Retailer 4
-
£1,458 GBP
$1,954 USD
View
Final sale: no returns
A
Retailer 5
-
£1,464 GBP
$1,962 USD
View
A
Retailer 6
-
£1,548 GBP
View
Retailer 7
-
£1,743 GBP
$2,336 USD
View
Price last confirmed 15 days ago
Retailer 8
-
£1,802 GBP
SGD 3,263 SGD
View
Price last confirmed 15 days ago
A
Retailer 9
-
£1,818 GBP
A$3,748 AUD
View
Retailer 10
-
£1,824 GBP
$2,444 USD
View
Price last confirmed 15 days ago
A
Retailer 11
-
£1,829 GBP
$2,450 USD
View
A
Retailer 12
-
£1,829 GBP
$2,450 USD
View
Retailer 13
-
£1,834 GBP
$2,458 USD
View
Price last confirmed 22 days ago
A
Retailer 14
-
£1,888 GBP
$2,530 USD
View
A
Retailer 15
-
£1,891 GBP
View
Retailer 16
-
£2,012 GBP
$2,696 USD
View
Price last confirmed 15 days ago
A
Retailer 17
-
£2,038 GBP
€2,601 EUR
View
A
Retailer 18
-
£2,131 GBP
$2,855 USD
View
B+
Retailer 19
-
£3,071 GBP
View
Most Expensive
NZ Jewellers
2ef8e819-0097-4b0d-8a1b-6e052127c7a8 · Oct 6
£3,836 GBP
$5,140 USD
View
Price last confirmed 25 days ago
19 more retailers have this diamond
Prices start from £1,309 GBPSave up to £1,762 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
1.00ct Round
£1,309 GBP