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Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 1242067609

Certificate GIA 1242067609

Diamond specifications and retailer prices

From £1,462 GBP
HK$15,300 HKD
As of October 31, 2026
Save £2,592 GBP (64%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,053 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.01ct natural round diamond

This 1.01ct natural round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by GIA 1242067609. Listed at 21 retailers as of October 30, 2026, with prices from £1,462 to £4,053, a £2,592 spread on the same certified stone. NZ Jewellers lists it at £4,053. 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

1.01
Carat
I
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 1242067609
Dimensions6.32 × 6.36 × 3.98 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.32 mm6.36 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242067609
Side View
Table 59.0%Crown 36°Girdle: MED-STKPavilion 41°Culet: Very SmallDepth 62.8%

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: £4,053 GBP|Low: £1,452 GBP|High: £4,053 GBP|Avg: £2,180 GBP|+0.9%
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
October 31, 2026
Retailer 13£1,462 GBP
Retailer 8£1,554 GBP
Retailer 2£1,614 GBP
Retailer 7£1,675 GBP
Retailer 17£1,676 GBP
Retailer 9£1,700 GBP
Retailer 20£1,754 GBP
Retailer 5£1,761 GBP
Retailer 10£1,825 GBP
Retailer 16£1,871 GBP
Retailer 15£1,878 GBP
Retailer 4£1,934 GBP
Retailer 18£1,992 GBP
Retailer 12£2,150 GBP
Retailer 11£2,304 GBP
Retailer 14£2,383 GBP
Retailer 3£2,829 GBP
Retailer 6£2,917 GBP
Retailer 19£3,415 GBP
NZ Jewellers£4,053 GBP

25 data points across 20 retailers

21 retailers£1,462 GBP to £4,053 GBP

A
Cheapest Retailer
-
£1,462 GBP
HK$15,300 HKD
Retailer 2
-
£1,545 GBP
$2,070 USD
View
Price last confirmed 24 days ago
A
Retailer 3
-
£1,554 GBP
$2,082 USD
View
A
Retailer 4
-
£1,614 GBP
$2,162 USD
View
Final sale: no returns
A
Retailer 5
-
£1,675 GBP
$2,244 USD
View
A
Retailer 6
-
£1,676 GBP
€2,138 EUR
View
A
Retailer 7
-
£1,700 GBP
$2,278 USD
View
A
Retailer 8
-
£1,754 GBP
$2,350 USD
View
B+
Retailer 9
-
£1,761 GBP
$2,360 USD
View
B+
Retailer 10
-
£1,825 GBP
$2,446 USD
View
B+
Retailer 11
-
£1,871 GBP
View
B+
Retailer 12
-
£1,878 GBP
View
B+
Retailer 13
-
£1,934 GBP
$2,592 USD
View
Retailer 14
-
£1,937 GBP
SGD 3,507 SGD
View
Price last confirmed 17 days ago
B+
Retailer 15
-
£1,992 GBP
$2,669 USD
View
Retailer 16
-
£2,150 GBP
A$4,432 AUD
View
Price last confirmed 25 days ago
B
Retailer 17
-
£2,383 GBP
ZAR 51,588 ZAR
View
B
Retailer 18
-
£2,829 GBP
$3,790 USD
View
B
Retailer 19
-
£2,917 GBP
$3,909 USD
View
B
Retailer 20
-
£3,415 GBP
View
Most Expensive
B
NZ Jewellers
36d5ead4-4ed7-4e5e-9781-9fbe99c4c602 · Oct 30
£4,053 GBP
$5,431 USD
View
20 more retailers have this diamond
Prices start from £1,462 GBPSave up to £2,592 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
1.01ct Round
£1,462 GBP