Oval|Natural|GIA

1.00ct D SI1 Oval Natural Diamond

EX • D/SI1 • GIA 3545348186

Certificate GIA 3545348186

Diamond specifications and retailer prices

From £1,691 GBP
HK$17,700 HKD
As of October 31, 2026
Save £2,143 GBP (56%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: £4,653 GBP at NZ Jewellers · As of October 17, 2026
View at NZ Jewellers

About this 1ct natural oval diamond

This 1ct natural oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 3545348186. Listed at 21 retailers as of October 28, 2026, with a 127% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
D
Colour
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 3545348186
Dimensions8.08 × 5.75 × 3.30 mm
L/W Ratio1.41
Top View
8.08 mm5.75 mm1.00 ctD / SI1
OriginNatural
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceFaint
CertificateGIA 3545348186
Side View
Table 62.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 57.4%

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 31
Current: £4,653 GBP|Low: £1,681 GBP|High: £4,653 GBP|Avg: £2,567 GBP
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
Retailer 14
Retailer 15
Retailer 16
Retailer 17
October 31, 2026
Retailer 11£1,691 GBP
Retailer 2£1,782 GBP
Retailer 4£1,975 GBP
Retailer 3£2,020 GBP
Retailer 16£2,054 GBP
Retailer 5£2,226 GBP
Retailer 17£2,311 GBP
Retailer 7£2,332 GBP
Retailer 8£2,355 GBP
Retailer 12£2,380 GBP
Retailer 9£2,391 GBP
Retailer 6£2,568 GBP
Retailer 13£2,606 GBP
Retailer 10£2,736 GBP
Retailer 14£3,742 GBP
Retailer 15£3,834 GBP
NZ Jewellers£4,653 GBP

28 data points across 17 retailers

21 retailers£1,691 GBP to £3,834 GBP

A
Cheapest Retailer
-
£1,691 GBP
HK$17,700 HKD
A
Retailer 2
-
£1,782 GBP
₹227,387 INR
View
A
Retailer 3
-
£1,975 GBP
SGD 3,576 SGD
View
A
Retailer 4
-
£2,020 GBP
$2,707 USD
View
A
Retailer 5
-
£2,054 GBP
$2,752 USD
View
Final sale: no returns
B+
Retailer 6
-
£2,108 GBP
$2,824 USD
View
B+
Retailer 7
-
£2,108 GBP
$2,825 USD
View
Retailer 8
-
£2,226 GBP
$2,982 USD
View
Price last confirmed 15 days ago
Retailer 9
-
£2,226 GBP
$2,982 USD
View
Price last confirmed 13 days ago
B+
Retailer 10
-
£2,235 GBP
A$4,608 AUD
View
Retailer 11
-
£2,311 GBP
$3,097 USD
View
Price last confirmed 14 days ago
B+
Retailer 12
-
£2,332 GBP
$3,125 USD
View
B+
Retailer 13
-
£2,355 GBP
SGD 4,265 SGD
View
B+
Retailer 14
-
£2,380 GBP
View
Retailer 15
-
£2,391 GBP
A$4,929 AUD
View
Price last confirmed 23 days ago
Retailer 16
-
£2,568 GBP
$3,441 USD
View
Price last confirmed 12 days ago
B+
Retailer 17
-
£2,606 GBP
€3,325 EUR
View
B+
Retailer 18
-
£2,736 GBP
ZAR 59,218 ZAR
View
B
Retailer 19
-
£3,742 GBP
View
B
Retailer 20
-
£3,834 GBP
View
Most Expensive
NZ Jewellers
2193bf38-06d4-46fe-b662-5ca0cda0a3d8 · Oct 17
£4,653 GBP
$6,235 USD
View
Price last confirmed 14 days ago
20 more retailers have this diamond
Prices start from £1,691 GBPSave up to £2,143 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
£1,691 GBP