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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

EX • D/IF • IGI LG754508368

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG754508368

Diamond specifications and retailer prices

From £230 GBP
$308 USD
As of October 30, 2026
Save £1,826 GBP (89%) vs most expensive(unlock to see where)
32 retailers carry this diamond
Most expensive: £2,055 GBP at Blue Nile · As of October 31, 2026
View at Blue Nile

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 IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG754508368 or 754508368. Listed at 32 retailers as of October 30, 2026, with prices from £230 to £2,055, a £1,826 spread on the same certified stone. Blue Nile lists it at £2,055. 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
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG754508368
Dimensions9.29 × 6.63 × 4.08 mm
L/W Ratio1.40
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
9.29 mm6.63 mm1.55 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG754508368
Side View
Table 58.0%Crown 34.4°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 61.5%

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: Oct 30
Current: £2,055 GBP|Low: £206 GBP|High: £2,500 GBP|Avg: £843 GBP
Blue Nile
Retailer 2
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October 31, 2026
Retailer 19£206 GBP
Retailer 7£230 GBP
Retailer 18£240 GBP
Retailer 12£363 GBP
Retailer 6£375 GBP
Retailer 24£377 GBP
Retailer 25£437 GBP
Retailer 9£438 GBP
Retailer 23£456 GBP
Retailer 2£465 GBP
Retailer 10£538 GBP
Retailer 11£596 GBP
Retailer 8£611 GBP
Retailer 22£618 GBP
Retailer 26£740 GBP
Retailer 17£908 GBP
Retailer 3£946 GBP
Retailer 14£978 GBP
Retailer 5£1,032 GBP
Retailer 15£1,046 GBP
Retailer 21£1,070 GBP
Retailer 13£1,425 GBP
Retailer 4£1,724 GBP
Retailer 16£1,806 GBP
Retailer 20£1,985 GBP
Blue Nile£2,055 GBP

40 data points across 26 retailers

32 retailers£230 GBP to £2,055 GBP

Retailer 1
-
£206 GBP
$276 USD
Price last confirmed 33 days ago
Retailer 2
-
£225 GBP
$302 USD
View
Price last confirmed 18 days ago
A
Retailer 3
-
£230 GBP
$308 USD
View
Final sale: no returns
Retailer 4
-
£240 GBP
$321 USD
View
Price last confirmed 36 days ago
A
Retailer 5
-
£240 GBP
$322 USD
View
Retailer 6
-
£240 GBP
$322 USD
View
Price last confirmed 21 days ago
Retailer 7
-
£240 GBP
$322 USD
View
Price last confirmed 29 days ago
Retailer 8
-
£252 GBP
$338 USD
View
Price last confirmed 32 days ago
A
Retailer 9
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 10
-
£375 GBP
$502 USD
View
A
Retailer 11
-
£377 GBP
$505 USD
View
A
Retailer 12
-
£437 GBP
€558 EUR
View
A
Retailer 13
-
£438 GBP
$587 USD
View
A
Retailer 14
-
£456 GBP
ZAR 9,878 ZAR
View
A
Retailer 15
-
£465 GBP
View
A
Retailer 16
-
£538 GBP
A$1,108 AUD
View
A
Retailer 17
-
£596 GBP
$798 USD
View
A
Retailer 18
-
£611 GBP
$819 USD
View
A
Retailer 19
-
£618 GBP
A$1,273 AUD
View
B+
Retailer 20
-
£740 GBP
$991 USD
View
Retailer 21
-
£854 GBP
$1,144 USD
View
Price last confirmed 21 days ago
Retailer 22
-
£908 GBP
$1,216 USD
View
Price last confirmed 31 days ago
B+
Retailer 23
-
£946 GBP
$1,267 USD
View
B+
Retailer 24
-
£978 GBP
$1,310 USD
View
B+
Retailer 25
-
£1,032 GBP
$1,383 USD
View
B+
Retailer 26
-
£1,046 GBP
SGD 1,894 SGD
View
B+
Retailer 27
-
£1,070 GBP
View
B+
Retailer 28
-
£1,425 GBP
A$2,937 AUD
View
B
Retailer 29
-
£1,724 GBP
$2,310 USD
View
Retailer 30
-
£1,806 GBP
$2,420 USD
View
Price last confirmed 33 days ago
B
Retailer 31
-
£1,985 GBP
$2,660 USD
View
Most Expensive
B
Blue Nile
28930044 · Oct 31
£2,055 GBP
$2,754 USD
View
31 more retailers have this diamond
Prices start from £230 GBPSave up to £1,826 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
£230 GBP