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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG743523308

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG743523308

Diamond specifications and retailer prices

From £194 GBP
$260 USD
As of October 29, 2026
Save £1,791 GBP (90%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: £1,985 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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 LG743523308 or 743523308. Listed at 28 retailers as of October 29, 2026, with prices from £194 to £1,985, a £1,791 spread on the same certified stone. Brilliant Earth lists it at £1,985. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG743523308
Dimensions9.64 × 6.52 × 3.97 mm
L/W Ratio1.48
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
9.64 mm6.52 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG743523308
Side View
Table 60.0%Crown 34.1°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 60.9%

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 29
Current: £1,985 GBP|Low: £187 GBP|High: £2,426 GBP|Avg: £766 GBP|-18.2%
Brilliant Earth
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November 1, 2026
Retailer 26£194 GBP
Retailer 25£225 GBP
Retailer 5£230 GBP
Retailer 4£240 GBP
Retailer 9£284 GBP
Retailer 7£355 GBP
Retailer 18£363 GBP
Retailer 8£375 GBP
Retailer 24£437 GBP
Retailer 15£438 GBP
Retailer 23£456 GBP
Retailer 2£465 GBP
Retailer 16£538 GBP
Retailer 17£596 GBP
Retailer 10£611 GBP
Retailer 22£618 GBP
Retailer 6£740 GBP
Retailer 3£854 GBP
Retailer 12£946 GBP
Retailer 19£978 GBP
Retailer 11£1,032 GBP
Retailer 20£1,046 GBP
Retailer 21£1,070 GBP
Retailer 13£1,425 GBP
Retailer 14£1,724 GBP
Retailer 27£1,791 GBP
Brilliant Earth£1,985 GBP

35 data points across 27 retailers

28 retailers£194 GBP to £1,985 GBP

A
Cheapest Retailer
-
£194 GBP
$260 USD
A
Retailer 2
-
£225 GBP
$302 USD
View
A
Retailer 3
-
£230 GBP
$308 USD
View
Final sale: no returns
A
Retailer 4
-
£240 GBP
$322 USD
View
Retailer 5
-
£284 GBP
View
Price last confirmed 25 days ago
A
Retailer 6
-
£355 GBP
$475 USD
View
A
Retailer 7
-
£363 GBP
HK$3,800 HKD
View
A
Retailer 8
-
£375 GBP
$502 USD
View
A
Retailer 9
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£437 GBP
€558 EUR
View
A
Retailer 10
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£438 GBP
$587 USD
View
A
Retailer 11
-
£456 GBP
ZAR 9,878 ZAR
View
A
Retailer 12
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£465 GBP
View
A
Retailer 13
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£538 GBP
A$1,108 AUD
View
A
Retailer 14
-
£596 GBP
$798 USD
View
A
Retailer 15
-
£611 GBP
$819 USD
View
A
Retailer 16
-
£618 GBP
A$1,273 AUD
View
B+
Retailer 17
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£740 GBP
$991 USD
View
B+
Retailer 18
-
£854 GBP
$1,144 USD
View
B+
Retailer 19
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£946 GBP
$1,267 USD
View
B+
Retailer 20
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£978 GBP
$1,310 USD
View
B+
Retailer 21
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£1,032 GBP
$1,383 USD
View
B+
Retailer 22
-
£1,046 GBP
SGD 1,894 SGD
View
B+
Retailer 23
-
£1,070 GBP
View
B+
Retailer 24
-
£1,425 GBP
A$2,937 AUD
View
B
Retailer 25
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£1,724 GBP
$2,310 USD
View
Retailer 26
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£1,791 GBP
$2,400 USD
View
Price last confirmed 13 days ago
Retailer 27
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£1,806 GBP
$2,420 USD
View
Price last confirmed 34 days ago
Most Expensive
B
Brilliant Earth
17199287Y · Oct 30
£1,985 GBP
$2,660 USD
View
27 more retailers have this diamond
Prices start from £194 GBPSave up to £1,791 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
£194 GBP