CaratHunter
Plans
Oval|Natural|GIA

1.00ct H SI1 Oval Natural Diamond

EX • H/SI1 • GIA 1438191945

Certificate GIA 1438191945

Diamond specifications and retailer prices

From £1,477 GBP
₹188,499 INR
As of November 1, 2026
Save £2,801 GBP (65%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: £4,278 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded H 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 1438191945. Listed at 20 retailers as of October 30, 2026, with prices from £1,477 to £4,278, a £2,801 spread on the same certified stone. NZ Jewellers lists it at £4,278. 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
H
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 1438191945
Dimensions7.44 × 5.49 × 3.53 mm
L/W Ratio1.36
Culet sizeNone
Key to symbols
Twinning Wisp, Feather
Top View
7.44 mm5.49 mm1.00 ctH / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateGIA 1438191945
Side View
Table 56.0%CrownGirdle: THK-ETKPavilionCulet: NoneDepth 64.3%

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: Nov 1
Current: £1,477 GBP|Low: £1,474 GBP|High: £3,628 GBP|Avg: £2,180 GBP|-1.8%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 1, 2026
Retailer 1£1,477 GBP
Retailer 6£1,490 GBP
Retailer 8£1,875 GBP
Retailer 9£1,881 GBP
Retailer 10£1,888 GBP
Retailer 4£2,187 GBP
Retailer 2£2,293 GBP
Retailer 7£2,396 GBP
Retailer 5£2,515 GBP
Retailer 3£3,585 GBP

32 data points across 10 retailers

20 retailers£1,477 GBP to £4,278 GBP

A
Cheapest Retailer
-
£1,477 GBP
₹188,499 INR
A
Retailer 2
-
£1,490 GBP
HK$15,600 HKD
View
B+
Retailer 3
-
£1,810 GBP
$2,425 USD
View
B+
Retailer 4
-
£1,875 GBP
$2,512 USD
View
B+
Retailer 5
-
£1,881 GBP
$2,520 USD
View
B+
Retailer 6
-
£1,888 GBP
$2,530 USD
View
Final sale: no returns
B+
Retailer 7
-
£2,011 GBP
$2,695 USD
View
B+
Retailer 8
-
£2,046 GBP
$2,742 USD
View
B+
Retailer 9
-
£2,046 GBP
$2,742 USD
View
B+
Retailer 10
-
£2,077 GBP
SGD 3,760 SGD
View
B
Retailer 11
-
£2,125 GBP
$2,847 USD
View
B
Retailer 12
-
£2,152 GBP
$2,883 USD
View
B
Retailer 13
-
£2,187 GBP
View
Retailer 14
-
£2,293 GBP
A$4,726 AUD
View
Price last confirmed 24 days ago
B
Retailer 15
-
£2,361 GBP
$3,163 USD
View
B+
Retailer 16
-
£2,396 GBP
€3,057 EUR
View
B
Retailer 17
-
£2,515 GBP
ZAR 54,443 ZAR
View
B
Retailer 18
-
£3,585 GBP
View
B
Retailer 19
-
£3,592 GBP
$4,813 USD
View
Most Expensive
B
NZ Jewellers
098527d8-c308-48ae-9753-c9cb0265a64d · Oct 30
£4,278 GBP
$5,732 USD
View
19 more retailers have this diamond
Prices start from £1,477 GBPSave up to £2,801 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 Oval
£1,477 GBP