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Round|Natural|GIA

1.00ct H SI1 Round Natural Diamond

VG • H/SI1 • GIA 2567588100

Certificate GIA 2567588100

Diamond specifications and retailer prices

From £1,299 GBP
HK$13,600 HKD
As of November 1, 2026
Save £2,434 GBP (65%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,733 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

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 very-good cut grade and certified by GIA 2567588100. Listed at 23 retailers as of October 30, 2026, with prices from £1,299 to £3,733, a £2,434 spread on the same certified stone. NZ Jewellers lists it at £3,733. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
H
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
Crown angle38°
Pavilion angle40°
OriginNatural
Grading LabGIA
CertificateGIA 2567588100
Dimensions6.13 × 6.20 × 4.01 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.13 mm6.20 mm1.00 ctH / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceMedium
CertificateGIA 2567588100
Side View
Table 56.0%Crown 38°Girdle: THN-THKPavilion 40°Culet: NoneDepth 65.1%

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: £3,733 GBP|Low: £1,299 GBP|High: £4,485 GBP|Avg: £1,839 GBP|+3.8%
NZ Jewellers
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
Retailer 22
November 2, 2026
Retailer 19£1,299 GBP
Retailer 14£1,306 GBP
Retailer 12£1,327 GBP
Retailer 22£1,377 GBP
Retailer 21£1,399 GBP
Retailer 7£1,429 GBP
Retailer 5£1,444 GBP
Retailer 13£1,448 GBP
Retailer 18£1,452 GBP
Retailer 6£1,549 GBP
Retailer 10£1,558 GBP
Retailer 16£1,575 GBP
Retailer 4£1,601 GBP
Retailer 11£1,630 GBP
Retailer 3£1,644 GBP
Retailer 9£1,826 GBP
Retailer 2£1,865 GBP
Retailer 20£2,086 GBP
Retailer 8£2,148 GBP
Retailer 17£2,179 GBP
Retailer 15£3,046 GBP
NZ Jewellers£3,733 GBP

11 data points across 22 retailers

23 retailers£1,299 GBP to £3,733 GBP

A
Cheapest Retailer
-
£1,299 GBP
HK$13,600 HKD
Retailer 2
-
£1,306 GBP
₹166,702 INR
View
Price last confirmed 17 days ago
A
Retailer 3
-
£1,327 GBP
$1,778 USD
View
A
Retailer 4
-
£1,377 GBP
$1,845 USD
View
A
Retailer 5
-
£1,399 GBP
$1,875 USD
View
B+
Retailer 6
-
£1,429 GBP
$1,915 USD
View
Final sale: no returns
A
Retailer 7
-
£1,444 GBP
$1,935 USD
View
A
Retailer 8
-
£1,448 GBP
$1,940 USD
View
A
Retailer 9
-
£1,452 GBP
A$2,994 AUD
View
A
Retailer 10
-
£1,549 GBP
$2,075 USD
View
A
Retailer 11
-
£1,558 GBP
$2,088 USD
View
Retailer 12
-
£1,563 GBP
$2,094 USD
View
Price last confirmed 17 days ago
A
Retailer 13
-
£1,575 GBP
$2,110 USD
View
A
Retailer 14
-
£1,601 GBP
$2,145 USD
View
A
Retailer 15
-
£1,630 GBP
$2,184 USD
View
A
Retailer 16
-
£1,644 GBP
View
B+
Retailer 17
-
£1,826 GBP
$2,447 USD
View
B+
Retailer 18
-
£1,865 GBP
View
B
Retailer 19
-
£2,086 GBP
$2,795 USD
View
B
Retailer 20
-
£2,148 GBP
ZAR 46,492 ZAR
View
B
Retailer 21
-
£2,179 GBP
€2,780 EUR
View
Retailer 22
-
£3,046 GBP
View
Price last confirmed 18 days ago
Most Expensive
C
NZ Jewellers
afe13754-8a98-4853-b129-a868e0a0c0b9 · Oct 30
£3,733 GBP
$5,002 USD
View
22 more retailers have this diamond
Prices start from £1,299 GBPSave up to £2,434 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