CaratHunter
Plans
Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

EX • H/SI1 • GIA 7466274234

Certificate GIA 7466274234

Diamond specifications and retailer prices

From £1,299 GBP
HK$13,600 HKD
As of November 1, 2026
Save £2,266 GBP (64%) vs most expensive(unlock to see where)
22 retailers carry this diamond
Most expensive: £3,565 GBP at Diamond Quarter · As of October 31, 2026
View at Diamond Quarter

About this 1ct natural round diamond

This 1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 7466274234. Listed at 22 retailers as of October 31, 2026, with prices from £1,299 to £3,565, a £2,266 spread on the same certified stone. Diamond Quarter lists it at £3,565. 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
H
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 7466274234
Dimensions6.33 × 6.28 × 4.03 mm
L/W Ratio1.01
Star length60%
Lower girdle75%
Top View
6.33 mm6.28 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 7466274234
Side View
Table 56.0%Crown 36°Girdle: STK-STKPavilion 41.2°Culet: NoneDepth 63.9%

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: Nov 1
Current: £1,310 GBP|Low: £1,290 GBP|High: £3,493 GBP|Avg: £1,970 GBP|-6.4%
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
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
November 1, 2026
Retailer 17£1,299 GBP
Retailer 1£1,310 GBP
Retailer 5£1,476 GBP
Retailer 10£1,509 GBP
Retailer 6£1,541 GBP
Retailer 4£1,664 GBP
Retailer 2£1,671 GBP
Retailer 21£1,671 GBP
Retailer 19£1,679 GBP
Retailer 20£1,775 GBP
Retailer 7£1,807 GBP
Retailer 15£1,823 GBP
Retailer 3£1,838 GBP
Retailer 8£1,928 GBP
Retailer 16£2,033 GBP
Retailer 18£2,054 GBP
Retailer 14£2,151 GBP
Retailer 11£2,443 GBP
Retailer 13£2,512 GBP
Retailer 12£2,927 GBP
Retailer 9£3,493 GBP

29 data points across 21 retailers

22 retailers£1,299 GBP to £3,565 GBP

A
Cheapest Retailer
-
£1,299 GBP
HK$13,600 HKD
A
Retailer 2
-
£1,310 GBP
₹167,227 INR
View
A
Retailer 3
-
£1,476 GBP
SGD 2,673 SGD
View
A
Retailer 4
-
£1,509 GBP
$2,022 USD
View
A
Retailer 5
-
£1,541 GBP
$2,065 USD
View
Final sale: no returns
A
Retailer 6
-
£1,664 GBP
$2,230 USD
View
A
Retailer 7
-
£1,671 GBP
$2,239 USD
View
A
Retailer 8
-
£1,671 GBP
$2,239 USD
View
A
Retailer 9
-
£1,679 GBP
$2,250 USD
View
B+
Retailer 10
-
£1,775 GBP
$2,378 USD
View
B+
Retailer 11
-
£1,807 GBP
SGD 3,272 SGD
View
A
Retailer 12
-
£1,823 GBP
View
B+
Retailer 13
-
£1,838 GBP
$2,462 USD
View
B+
Retailer 14
-
£1,928 GBP
$2,583 USD
View
B+
Retailer 15
-
£2,033 GBP
€2,594 EUR
View
B+
Retailer 16
-
£2,054 GBP
ZAR 44,451 ZAR
View
Retailer 17
-
£2,151 GBP
A$4,435 AUD
View
Price last confirmed 25 days ago
B+
Retailer 18
-
£2,443 GBP
$3,274 USD
View
B+
Retailer 19
-
£2,512 GBP
$3,366 USD
View
B
Retailer 20
-
£2,927 GBP
View
B
Retailer 21
-
£3,493 GBP
$4,680 USD
View
Most Expensive
B
Diamond Quarter
1.0SI1H7434D68BN · Oct 31
£3,565 GBP
View
21 more retailers have this diamond
Prices start from £1,299 GBPSave up to £2,266 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
£1,299 GBP