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Oval|Lab Grown|IGI

0.55ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG778617268

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778617268

Diamond specifications and retailer prices

From £96 GBP
As of November 5, 2026
Save £517 GBP (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £1,151 GBP at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 0.55ct lab-grown oval diamond

This 0.55ct lab-grown oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778617268 or 778617268. Listed at 13 retailers as of November 4, 2026, with a 541% 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

0.55
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778617268
Dimensions6.71 × 4.64 × 2.83 mm
L/W Ratio1.45
Girdle conditionFaceted
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
6.71 mm4.64 mm0.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778617268
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.0%

Caratlytics Score

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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: Nov 5
Current: £1,151 GBP|Low: £94 GBP|High: £1,151 GBP|Avg: £373 GBP
Do Amore 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 4, 2026
Retailer 7£96 GBP
Retailer 13£113 GBP
Retailer 3£121 GBP
Retailer 10£146 GBP
Retailer 5£176 GBP
Retailer 4£179 GBP
Retailer 9£224 GBP
Retailer 8£314 GBP
Retailer 11£347 GBP
Retailer 12£383 GBP
Retailer 14£430 GBP
Retailer 6£611 GBP
Retailer 2£613 GBP
Do Amore Diamonds£1,151 GBP

31 data points across 14 retailers

13 retailers£96 GBP to £613 GBP

A
Cheapest Retailer
-
£96 GBP
Retailer 2
-
£98 GBP
View
Price last confirmed 19 days ago
Retailer 3
-
£113 GBP
View
Price last confirmed 17 days ago
Retailer 4
-
£121 GBP
View
Price last confirmed 18 days ago
A
Retailer 5
-
£146 GBP
View
A
Retailer 6
-
£179 GBP
View
A
Retailer 7
-
£224 GBP
View
B+
Retailer 8
-
£314 GBP
View
B+
Retailer 9
-
£347 GBP
View
B
Retailer 10
-
£383 GBP
View
Retailer 11
-
£430 GBP
View
Price last confirmed 19 days ago
B
Retailer 12
-
£613 GBP
View
Most Expensive
Do Amore Diamonds
32-LG778617268 · Nov 6
£1,151 GBP
$1,540 USD
View
Price under review
12 more retailers have this diamond
Prices start from £96 GBPSave up to £517 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
0.55ct Oval
£96 GBP