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Round|Natural|GIA

1.01ct E SI1 Round Natural Diamond

VG • E/SI1 • GIA 1539339166

Certificate GIA 1539339166

Diamond specifications and retailer prices

From £1,682 GBP
$2,254 USD
As of October 30, 2026
Save £2,285 GBP (58%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £3,967 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 E colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by GIA 1539339166. Listed at 23 retailers as of October 30, 2026, with prices from £1,682 to £3,967, a £2,285 spread on the same certified stone. NZ Jewellers lists it at £3,967. 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
E
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle38°
Pavilion angle40.2°
OriginNatural
Grading LabGIA
CertificateGIA 1539339166
Dimensions6.18 × 6.22 × 4.02 mm
L/W Ratio1.01
Girdle conditionFaceted
Top View
6.18 mm6.22 mm1.01 ctE / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1539339166
Side View
Table 57.0%Crown 38°Girdle: ThickPavilion 40.2°Culet: NoneDepth 64.8%

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 30
Current: £3,967 GBP|Low: £1,630 GBP|High: £4,171 GBP|Avg: £2,399 GBP|-4.9%
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
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Retailer 15
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
Retailer 23
October 30, 2026
Retailer 14£1,682 GBP
Retailer 5£1,710 GBP
Retailer 9£1,848 GBP
Retailer 11£1,881 GBP
Retailer 15£1,905 GBP
Retailer 23£1,911 GBP
Retailer 19£1,985 GBP
Retailer 10£2,026 GBP
Retailer 3£2,063 GBP
Retailer 8£2,063 GBP
Retailer 6£2,143 GBP
Retailer 20£2,254 GBP
Retailer 22£2,254 GBP
Retailer 18£2,329 GBP
Retailer 12£2,381 GBP
Retailer 13£2,423 GBP
Retailer 16£2,426 GBP
Retailer 2£2,508 GBP
Retailer 4£2,643 GBP
Retailer 7£2,699 GBP
Retailer 21£2,773 GBP
Retailer 17£3,828 GBP
NZ Jewellers£3,967 GBP

26 data points across 23 retailers

23 retailers£1,682 GBP to £3,967 GBP

A
Cheapest Retailer
-
£1,682 GBP
$2,254 USD
A
Retailer 2
-
£1,710 GBP
HK$17,900 HKD
View
A
Retailer 3
-
£1,848 GBP
$2,476 USD
View
A
Retailer 4
-
£1,881 GBP
$2,520 USD
View
B+
Retailer 5
-
£1,905 GBP
$2,552 USD
View
Final sale: no returns
A
Retailer 6
-
£1,911 GBP
A$3,939 AUD
View
A
Retailer 7
-
£1,985 GBP
$2,660 USD
View
A
Retailer 8
-
£2,026 GBP
$2,715 USD
View
A
Retailer 9
-
£2,063 GBP
$2,764 USD
View
A
Retailer 10
-
£2,063 GBP
$2,764 USD
View
A
Retailer 11
-
£2,143 GBP
$2,871 USD
View
B+
Retailer 12
-
£2,254 GBP
$3,020 USD
View
B+
Retailer 13
-
£2,254 GBP
$3,020 USD
View
B+
Retailer 14
-
£2,329 GBP
$3,120 USD
View
B+
Retailer 15
-
£2,381 GBP
$3,190 USD
View
B+
Retailer 16
-
£2,423 GBP
View
Retailer 17
-
£2,426 GBP
A$5,000 AUD
View
Price last confirmed 27 days ago
B+
Retailer 18
-
£2,508 GBP
€3,200 EUR
View
Retailer 19
-
£2,643 GBP
$3,541 USD
View
Price last confirmed 8 days ago
B+
Retailer 20
-
£2,699 GBP
$3,616 USD
View
B+
Retailer 21
-
£2,773 GBP
ZAR 60,024 ZAR
View
B
Retailer 22
-
£3,828 GBP
View
Most Expensive
B
NZ Jewellers
20c866cf-c70d-4551-98de-6361941beb2e · Oct 30
£3,967 GBP
$5,316 USD
View
22 more retailers have this diamond
Prices start from £1,682 GBPSave up to £2,285 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
£1,682 GBP