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Oval|Lab Grown|IGI

5.51ct D FL Oval Lab Grown Diamond

ID • D/FL • IGI LG762545888

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG762545888

Diamond specifications and retailer prices

From £6,617 GBP
$8,866 USD
As of November 1, 2026
Save £19,156 GBP (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £25,773 GBP at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 5.51ct lab-grown oval diamond

This 5.51ct lab-grown oval sits in the over five carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG762545888 or 762545888. Listed at 14 retailers as of October 31, 2026, with prices from £6,617 to £25,773, a £19,156 spread on the same certified stone. Taylor and Hart lists it at £25,773. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

5.51
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG762545888
Dimensions14.34 × 10.09 × 6.07 mm
L/W Ratio1.42
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
14.34 mm10.09 mm5.51 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG762545888
Side View
Table 63.0%Crown 32.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 60.2%

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: Nov 1
Current: £9,787 GBP|Low: £6,617 GBP|High: £33,800 GBP|Avg: £16,041 GBP|-32.1%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Taylor and Hart
November 1, 2026
Retailer 2£6,617 GBP
Retailer 10£8,616 GBP
Retailer 13£8,645 GBP
Retailer 4£9,037 GBP
Retailer 1£9,787 GBP
Retailer 3£11,702 GBP
Retailer 5£13,668 GBP
Retailer 7£13,680 GBP
Retailer 6£13,845 GBP
Retailer 9£14,801 GBP
Retailer 8£16,759 GBP
Retailer 12£22,762 GBP
Retailer 11£23,082 GBP
Taylor and Hart£25,773 GBP

37 data points across 14 retailers

14 retailers£6,617 GBP to £25,773 GBP

A
Cheapest Retailer
-
£6,617 GBP
$8,866 USD
A
Retailer 2
-
£8,616 GBP
$11,545 USD
View
A
Retailer 3
-
£8,645 GBP
$11,583 USD
View
A
Retailer 4
-
£9,037 GBP
HK$94,600 HKD
View
A
Retailer 5
-
£9,787 GBP
View
A
Retailer 6
-
£11,702 GBP
$15,680 USD
View
B+
Retailer 7
-
£13,668 GBP
$18,314 USD
View
B+
Retailer 8
-
£13,680 GBP
$18,330 USD
View
B+
Retailer 9
-
£13,845 GBP
€17,667 EUR
View
B+
Retailer 10
-
£14,801 GBP
View
B+
Retailer 11
-
£16,759 GBP
ZAR 362,762 ZAR
View
B+
Retailer 12
-
£22,762 GBP
$30,499 USD
View
B
Retailer 13
-
£23,082 GBP
$30,927 USD
View
Most Expensive
B
Taylor and Hart
8KPLXXC · Oct 31
£25,773 GBP
$34,533 USD
View
13 more retailers have this diamond
Prices start from £6,617 GBPSave up to £19,156 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
5.51ct Oval
£6,617 GBP