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Oval|Lab Grown|IGI

1.00ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG783604437

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG783604437

Diamond specifications and retailer prices

From £115 GBP
$154 USD
As of October 29, 2026
Save £666 GBP (85%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £781 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown oval diamond

This 1ct lab-grown oval sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG783604437 or 783604437. Listed at 18 retailers as of October 29, 2026, with prices from £115 to £781, a £666 spread on the same certified stone. Reve Diamonds lists it at £781. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.9°
Pavilion angle39.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG783604437
Dimensions8.01 × 5.61 × 3.49 mm
L/W Ratio1.43
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.01 mm5.61 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG783604437
Side View
Table 61.0%Crown 37.9°Girdle: MED-STKPavilion 39.7°Culet: NoneDepth 62.2%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £380 GBP|Low: £88 GBP|High: £781 GBP|Avg: £331 GBP|+1.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Reve Diamonds
October 30, 2026
Retailer 9£115 GBP
Retailer 6£142 GBP
Retailer 5£237 GBP
Retailer 12£239 GBP
Retailer 8£249 GBP
Retailer 7£260 GBP
Retailer 2£343 GBP
Retailer 3£360 GBP
Retailer 1£380 GBP
Retailer 4£440 GBP
Retailer 10£499 GBP
Retailer 11£649 GBP
Reve Diamonds£781 GBP

43 data points across 13 retailers

18 retailers£115 GBP to £781 GBP

A
Cheapest Retailer
-
£115 GBP
$154 USD
A
Retailer 2
-
£129 GBP
$173 USD
View
A
Retailer 3
-
£138 GBP
$185 USD
View
A
Retailer 4
-
£138 GBP
$185 USD
View
A
Retailer 5
-
£142 GBP
$190 USD
View
Final sale: no returns
A
Retailer 6
-
£237 GBP
$318 USD
View
A
Retailer 7
-
£239 GBP
€305 EUR
View
A
Retailer 8
-
£249 GBP
View
A
Retailer 9
-
£260 GBP
$348 USD
View
B+
Retailer 10
-
£343 GBP
A$708 AUD
View
B+
Retailer 11
-
£360 GBP
$483 USD
View
B+
Retailer 12
-
£380 GBP
$509 USD
View
Retailer 13
-
£391 GBP
$524 USD
View
Price last confirmed 110 days ago
B+
Retailer 14
-
£440 GBP
$590 USD
View
B+
Retailer 15
-
£444 GBP
$595 USD
View
B
Retailer 16
-
£499 GBP
$669 USD
View
B
Retailer 17
-
£649 GBP
View
Most Expensive
B
Reve Diamonds
0A2E482F1 · Oct 30
£781 GBP
$1,046 USD
View
17 more retailers have this diamond
Prices start from £115 GBPSave up to £666 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
£115 GBP