Round|Natural|GIA

1.01ct I SI1 Round Natural Diamond

GD • I/SI1 • GIA 6551418713

Certificate GIA 6551418713

Diamond specifications and retailer prices

From £1,003 GBP
HK$10,500 HKD
As of October 27, 2026
Save £1,389 GBP (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,670 GBP at NZ Jewellers · As of September 28, 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 standard cut grade and certified by GIA 6551418713. Listed at 23 retailers as of October 26, 2026, with a 139% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.01
Carat
I
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle40°
Pavilion angle39.6°
OriginNatural
Grading LabGIA
CertificateGIA 6551418713
Dimensions6.16 × 6.07 × 4.04 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizeNone
Top View
6.16 mm6.07 mm1.01 ctI / SI1
OriginNatural
CutGood
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateGIA 6551418713
Side View
Table 57.0%Crown 40°Girdle: STK-VTKPavilion 39.6°Culet: NDepth 66.0%

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 27
Current: £1,297 GBP|Low: £1,003 GBP|High: £2,543 GBP|Avg: £1,507 GBP|-7.0%
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
October 29, 2026
Retailer 6£1,003 GBP
Retailer 15£1,036 GBP
Retailer 11£1,160 GBP
Retailer 10£1,242 GBP
Retailer 1£1,297 GBP
Retailer 13£1,302 GBP
Retailer 17£1,321 GBP
Retailer 12£1,358 GBP
Retailer 4£1,364 GBP
Retailer 5£1,364 GBP
Retailer 8£1,364 GBP
Retailer 7£1,407 GBP
Retailer 14£1,511 GBP
Retailer 16£1,660 GBP
Retailer 3£1,733 GBP
Retailer 9£1,872 GBP
Retailer 2£2,392 GBP

28 data points across 17 retailers

23 retailers£1,003 GBP to £2,392 GBP

A
Cheapest Retailer
-
£1,003 GBP
HK$10,500 HKD
A
Retailer 2
-
£1,036 GBP
₹132,241 INR
View
B+
Retailer 3
-
£1,160 GBP
A$2,390 AUD
View
B+
Retailer 4
-
£1,242 GBP
$1,664 USD
View
Final sale: no returns
B+
Retailer 5
-
£1,297 GBP
$1,738 USD
View
B+
Retailer 6
-
£1,302 GBP
$1,745 USD
View
B+
Retailer 7
-
£1,321 GBP
$1,770 USD
View
B+
Retailer 8
-
£1,358 GBP
$1,820 USD
View
B+
Retailer 9
-
£1,364 GBP
$1,827 USD
View
B+
Retailer 10
-
£1,364 GBP
$1,827 USD
View
B+
Retailer 11
-
£1,364 GBP
$1,827 USD
View
B+
Retailer 12
-
£1,407 GBP
SGD 2,547 SGD
View
B+
Retailer 13
-
£1,498 GBP
A$3,088 AUD
View
Retailer 14
-
£1,500 GBP
$2,010 USD
View
Price last confirmed 32 days ago
Retailer 15
-
£1,505 GBP
$2,016 USD
View
Price last confirmed 33 days ago
B+
Retailer 16
-
£1,511 GBP
View
Retailer 17
-
£1,655 GBP
$2,217 USD
View
Price last confirmed 32 days ago
B+
Retailer 18
-
£1,660 GBP
ZAR 35,943 ZAR
View
Retailer 19
-
£1,733 GBP
€2,212 EUR
View
Price last confirmed 8 days ago
Retailer 20
-
£1,818 GBP
$2,436 USD
View
Price last confirmed 68 days ago
Retailer 21
-
£1,872 GBP
A$3,858 AUD
View
Price last confirmed 26 days ago
B
Retailer 22
-
£2,392 GBP
View
Most Expensive
NZ Jewellers
b234fde3-2f3c-40f7-8bfc-ca3be96552ac · Sep 28
£3,670 GBP
$4,918 USD
View
Price last confirmed 33 days ago
22 more retailers have this diamond
Prices start from £1,003 GBPSave up to £1,389 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
£1,003 GBP