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Oval|Lab Grown|IGI

1.55ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG788629648

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG788629648

Diamond specifications and retailer prices

From £248 GBP
$332 USD
As of October 29, 2026
Save £986 GBP (80%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: £2,993 GBP at Rare Carat · As of October 21, 2026
View at Rare Carat

About this 1.55ct lab-grown oval diamond

This 1.55ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG788629648 or 788629648. Listed at 23 retailers as of October 25, 2026, with a 398% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.55
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.6°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG788629648
Dimensions9.12 × 6.71 × 4.02 mm
L/W Ratio1.36
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
9.12 mm6.71 mm1.55 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG788629648
Side View
Table 62.0%Crown 35.6°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 59.9%

Caratlytics Score

How it works →
A+
Exceptional
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 29
Current: £2,993 GBP|Low: £248 GBP|High: £4,067 GBP|Avg: £1,046 GBP|-0.4%
Rare Carat
Retailer 2
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Retailer 22
October 30, 2026
Retailer 5£248 GBP
Retailer 8£277 GBP
Retailer 20£287 GBP
Retailer 14£307 GBP
Retailer 18£307 GBP
Retailer 17£422 GBP
Retailer 3£497 GBP
Retailer 22£500 GBP
Retailer 16£528 GBP
Retailer 15£545 GBP
Retailer 13£550 GBP
Retailer 6£797 GBP
Retailer 4£902 GBP
Retailer 12£988 GBP
Retailer 9£1,021 GBP
Retailer 10£1,050 GBP
Retailer 21£1,052 GBP
Retailer 11£1,143 GBP
Retailer 7£1,194 GBP
Retailer 19£1,234 GBP
Retailer 2£2,411 GBP
Rare Carat£2,993 GBP

27 data points across 22 retailers

23 retailers£248 GBP to £1,234 GBP

A+
Cheapest Retailer
-
£248 GBP
$332 USD
A
Retailer 2
-
£277 GBP
$371 USD
View
Final sale: no returns
A
Retailer 3
-
£287 GBP
$385 USD
View
A
Retailer 4
-
£307 GBP
$412 USD
View
A
Retailer 5
-
£307 GBP
$412 USD
View
A
Retailer 6
-
£422 GBP
$565 USD
View
A
Retailer 7
-
£497 GBP
$666 USD
View
A
Retailer 8
-
£500 GBP
$670 USD
View
A
Retailer 9
-
£528 GBP
ZAR 11,435 ZAR
View
A
Retailer 10
-
£550 GBP
View
A
Retailer 11
-
£797 GBP
$1,068 USD
View
Retailer 12
-
£805 GBP
$1,078 USD
View
Price last confirmed 25 days ago
B+
Retailer 13
-
£902 GBP
$1,208 USD
View
B+
Retailer 14
-
£988 GBP
$1,324 USD
View
B+
Retailer 15
-
£1,021 GBP
$1,368 USD
View
B+
Retailer 16
-
£1,050 GBP
SGD 1,902 SGD
View
B+
Retailer 17
-
£1,052 GBP
$1,410 USD
View
B+
Retailer 18
-
£1,073 GBP
$1,438 USD
View
B+
Retailer 19
-
£1,143 GBP
$1,532 USD
View
B+
Retailer 20
-
£1,194 GBP
View
B+
Retailer 21
-
£1,234 GBP
View
Retailer 22
-
£2,411 GBP
$3,230 USD
View
Price under review
Most Expensive
Rare Carat
PE-201206 · Oct 21
£2,993 GBP
$4,010 USD
View
Price last confirmed 9 days ago
22 more retailers have this diamond
Prices start from £248 GBPSave up to £986 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+
1.55ct Oval
£248 GBP