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Round|Natural|GIA

1.10ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 6435754030

Certificate GIA 6435754030

Diamond specifications and retailer prices

From £1,584 GBP
$2,122 USD
As of October 30, 2026
Save £2,273 GBP (59%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £3,857 GBP at Diamond Quarter · As of October 29, 2026
View at Diamond Quarter

About this 1.1ct natural round diamond

This 1.1ct natural round sits in the classic one-carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 6435754030. Listed at 15 retailers as of October 29, 2026, with prices from £1,584 to £3,857, a £2,273 spread on the same certified stone. Diamond Quarter lists it at £3,857. 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

1.10
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.8°
OriginNatural
Grading LabGIA
CertificateGIA 6435754030
Dimensions6.59 × 6.56 × 4.10 mm
L/W Ratio1.00
Star length45%
Lower girdle80%
Top View
6.59 mm6.56 mm1.10 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6435754030
Side View
Table 57.0%Crown 35.5°Girdle: ThickPavilion 40.8°Culet: NoneDepth 62.3%

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: £1,912 GBP|Low: £1,482 GBP|High: £3,107 GBP|Avg: £1,976 GBP|+4.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 6£1,584 GBP
Retailer 5£1,617 GBP
Retailer 2£1,645 GBP
Retailer 7£1,752 GBP
Retailer 8£1,857 GBP
Retailer 1£1,912 GBP
Retailer 9£2,112 GBP
Retailer 3£2,189 GBP
Retailer 4£3,087 GBP

41 data points across 9 retailers

15 retailers£1,584 GBP to £3,857 GBP

A
Cheapest Retailer
-
£1,584 GBP
$2,122 USD
A
Retailer 2
-
£1,617 GBP
$2,167 USD
View
Final sale: no returns
A
Retailer 3
-
£1,645 GBP
View
Retailer 4
-
£1,752 GBP
$2,348 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£1,752 GBP
$2,348 USD
View
Price last confirmed 30 days ago
Retailer 6
-
£1,833 GBP
$2,456 USD
View
Price last confirmed 32 days ago
A
Retailer 7
-
£1,857 GBP
$2,488 USD
View
A
Retailer 8
-
£1,912 GBP
View
Retailer 9
-
£2,022 GBP
$2,709 USD
View
Price last confirmed 39 days ago
Retailer 10
-
£2,022 GBP
$2,709 USD
View
Price last confirmed 31 days ago
B+
Retailer 11
-
£2,189 GBP
€2,793 EUR
View
B
Retailer 12
-
£3,087 GBP
View
Retailer 13
-
£3,664 GBP
$4,909 USD
View
Price last confirmed 36 days ago
Retailer 14
-
£3,664 GBP
$4,909 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Diamond Quarter
1.1SI2H6430A293N · Oct 29
£3,857 GBP
View
14 more retailers have this diamond
Prices start from £1,584 GBPSave up to £2,273 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
1.10ct Round
£1,584 GBP