Oval|Natural|GIA

1.01ct G SI1 Oval Natural Diamond

EX • G/SI1 • GIA 1236816584

Certificate GIA 1236816584

Diamond specifications and retailer prices

From £1,448 GBP
As of November 5, 2026
Save £321 GBP (18%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £2,661 GBP at Helzberg Diamonds · As of October 30, 2026
View at Helzberg Diamonds

About this 1.01ct natural oval diamond

This 1.01ct natural oval sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1236816584. Listed at 14 retailers as of November 5, 2026, with a relatively tight 22% spread, which is unusual at this carat range and suggests competitive pricing across the listings. 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
G
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
Crown angle40.43°
Pavilion angle39.8°
OriginNatural
Grading LabGIA
CertificateGIA 1236816584
Dimensions7.81 × 5.61 × 3.52 mm
L/W Ratio1.39
Culet sizeNone
Top View
7.81 mm5.61 mm1.01 ctG / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceFaint
CertificateGIA 1236816584
Side View
Table 60.0%Crown 40.43°Girdle: THN-THKPavilion 39.8°Culet: NoneDepth 62.7%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 5
Current: £2,661 GBP|Low: £1,440 GBP|High: £2,829 GBP|Avg: £1,884 GBP|-5.9%
Helzberg Diamonds
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
November 5, 2026
Retailer 2£1,448 GBP
Retailer 11£1,473 GBP
Retailer 10£1,485 GBP
Retailer 12£1,490 GBP
Retailer 4£1,617 GBP
Retailer 8£1,639 GBP
Retailer 14£1,766 GBP
Retailer 6£1,788 GBP
Retailer 7£1,863 GBP
Retailer 3£1,885 GBP
Retailer 9£2,093 GBP
Retailer 13£2,264 GBP
Retailer 5£2,456 GBP
Helzberg Diamonds£2,661 GBP

29 data points across 14 retailers

14 retailers£1,448 GBP to £1,769 GBP

A
Cheapest Retailer
-
£1,448 GBP
Retailer 2
-
£1,473 GBP
View
Price last confirmed 7 days ago
Retailer 3
-
£1,485 GBP
View
Price last confirmed 9 days ago
Retailer 4
-
£1,490 GBP
View
Price last confirmed 7 days ago
A
Retailer 5
-
£1,617 GBP
View
Retailer 6
-
£1,639 GBP
View
Price last confirmed 7 days ago
Retailer 7
-
£1,766 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£1,769 GBP
View
Retailer 9
-
£1,788 GBP
View
Price last confirmed 9 days ago
Retailer 10
-
£1,885 GBP
View
Price last confirmed 8 days ago
Retailer 11
-
£2,093 GBP
View
Price last confirmed 9 days ago
Retailer 12
-
£2,264 GBP
View
Price last confirmed 7 days ago
Retailer 13
-
£2,456 GBP
View
Price last confirmed 11 days ago
Most Expensive
Helzberg Diamonds
XZRHIJMOHMLOK · Oct 30
£2,661 GBP
$3,562 USD
View
Price last confirmed 7 days ago
13 more retailers have this diamond
Prices start from £1,448 GBPSave up to £321 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 Oval
£1,448 GBP