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Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

EX • I/SI1 • GIA 6565418236

Certificate GIA 6565418236

Diamond specifications and retailer prices

From £1,213 GBP
HK$12,700 HKD
As of October 30, 2026
Save £2,228 GBP (65%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £3,441 GBP at NZ Jewellers · As of October 27, 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 6565418236. Listed at 21 retailers as of October 27, 2026, with prices from £1,213 to £3,441, a £2,228 spread on the same certified stone. NZ Jewellers lists it at £3,441. 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
FluorescenceMedium
Crown angle31.5°
Pavilion angle41.8°
OriginNatural
Grading LabGIA
CertificateGIA 6565418236
Dimensions6.45 × 6.50 × 3.93 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Key to symbols
Feather, Crystal, Natural
Top View
6.45 mm6.50 mm1.01 ctI / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceMedium
CertificateGIA 6565418236
Side View
Table 60.0%Crown 31.5°Girdle: STK-STKPavilion 41.8°Culet: NoneDepth 60.7%

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: £3,441 GBP|Low: £1,213 GBP|High: £3,441 GBP|Avg: £1,854 GBP
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
October 28, 2026
Retailer 4£1,213 GBP
Retailer 11£1,487 GBP
Retailer 21£1,519 GBP
Retailer 13£1,530 GBP
Retailer 14£1,562 GBP
Retailer 15£1,593 GBP
Retailer 6£1,646 GBP
Retailer 8£1,646 GBP
Retailer 5£1,657 GBP
Retailer 7£1,700 GBP
Retailer 20£1,722 GBP
Retailer 16£1,785 GBP
Retailer 3£1,793 GBP
Retailer 19£1,886 GBP
Retailer 9£1,899 GBP
Retailer 12£1,925 GBP
Retailer 17£2,004 GBP
Retailer 10£2,024 GBP
Retailer 2£2,052 GBP
Retailer 18£2,888 GBP
NZ Jewellers£3,441 GBP

24 data points across 21 retailers

21 retailers£1,213 GBP to £3,441 GBP

A
Cheapest Retailer
-
£1,213 GBP
HK$12,700 HKD
A
Retailer 2
-
£1,487 GBP
$1,993 USD
View
A
Retailer 3
-
£1,519 GBP
$2,035 USD
View
Final sale: no returns
A
Retailer 4
-
£1,530 GBP
$2,050 USD
View
A
Retailer 5
-
£1,562 GBP
$2,093 USD
View
A
Retailer 6
-
£1,593 GBP
View
A
Retailer 7
-
£1,646 GBP
$2,206 USD
View
Retailer 8
-
£1,646 GBP
$2,206 USD
View
Price last confirmed 7 days ago
A
Retailer 9
-
£1,657 GBP
$2,220 USD
View
B+
Retailer 10
-
£1,700 GBP
SGD 3,079 SGD
View
Retailer 11
-
£1,722 GBP
$2,307 USD
View
Price last confirmed 7 days ago
B+
Retailer 12
-
£1,785 GBP
View
B+
Retailer 13
-
£1,793 GBP
$2,402 USD
View
B+
Retailer 14
-
£1,886 GBP
View
B+
Retailer 15
-
£1,899 GBP
$2,545 USD
View
B+
Retailer 16
-
£1,925 GBP
$2,579 USD
View
B+
Retailer 17
-
£2,004 GBP
ZAR 43,389 ZAR
View
Retailer 18
-
£2,024 GBP
A$4,173 AUD
View
Price last confirmed 26 days ago
B+
Retailer 19
-
£2,052 GBP
€2,619 EUR
View
B
Retailer 20
-
£2,888 GBP
View
Most Expensive
B
NZ Jewellers
3fd4f247-6b04-4e88-bd8a-592cb5ba4633 · Oct 27
£3,441 GBP
$4,611 USD
View
20 more retailers have this diamond
Prices start from £1,213 GBPSave up to £2,228 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
£1,213 GBP