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Radiant|Natural|GIA

1.00ct E SI2 Radiant Natural Diamond

EX • E/SI2 • GIA 1242093314

Certificate GIA 1242093314

Diamond specifications and retailer prices

From £1,438 GBP
SGD 2,588 SGD
As of October 29, 2026
Save £1,219 GBP (46%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £2,657 GBP at Helzberg Diamonds · As of October 29, 2026
View at Helzberg Diamonds

About this 1ct natural radiant diamond

This 1ct natural radiant sits in the classic one-carat band, graded E colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1242093314. Listed at 11 retailers as of October 29, 2026, with prices from £1,438 to £2,657, a £1,219 spread on the same certified stone. Helzberg Diamonds lists it at £2,657. 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

1.00
Carat
E
Colour
SI2
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1242093314
Dimensions7.14 × 5.07 × 3.28 mm
L/W Ratio1.41
Culet sizeNone
Top View
7.14 mm5.07 mm1.00 ctE / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1242093314
Side View
Table 68.0%CrownGirdle: MED-THKPavilionCulet: 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 29
Current: £2,657 GBP|Low: £1,470 GBP|High: £2,657 GBP|Avg: £1,872 GBP
Helzberg Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 30, 2026
Retailer 8£1,470 GBP
Retailer 5£1,482 GBP
Retailer 4£1,506 GBP
Retailer 7£1,614 GBP
Retailer 2£1,636 GBP
Retailer 6£1,763 GBP
Retailer 9£1,884 GBP
Retailer 3£2,089 GBP
Retailer 10£2,445 GBP
Helzberg Diamonds£2,657 GBP

16 data points across 10 retailers

11 retailers£1,438 GBP to £2,657 GBP

A
Cheapest Retailer
-
£1,438 GBP
SGD 2,588 SGD
A
Retailer 2
-
£1,470 GBP
$1,957 USD
View
A
Retailer 3
-
£1,482 GBP
$1,974 USD
View
A
Retailer 4
-
£1,506 GBP
$2,005 USD
View
A
Retailer 5
-
£1,614 GBP
SGD 2,905 SGD
View
A
Retailer 6
-
£1,636 GBP
View
A
Retailer 7
-
£1,763 GBP
$2,348 USD
View
A
Retailer 8
-
£1,884 GBP
$2,508 USD
View
B+
Retailer 9
-
£2,089 GBP
€2,649 EUR
View
B+
Retailer 10
-
£2,445 GBP
$3,256 USD
View
Most Expensive
B
Helzberg Diamonds
XZRHIKIGPJJHK · Oct 29
£2,657 GBP
$3,538 USD
View
10 more retailers have this diamond
Prices start from £1,438 GBPSave up to £1,219 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 Radiant
£1,438 GBP