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Oval|Lab Grown|IGI

1.55ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG720566122

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG720566122

Diamond specifications and retailer prices

From £214 GBP
$287 USD
As of October 29, 2026
Save £1,980 GBP (90%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: £2,194 GBP at Brilliant Earth · As of October 31, 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 LG720566122 or 720566122. Listed at 26 retailers as of October 29, 2026, with prices from £214 to £2,194, a £1,980 spread on the same certified stone. Brilliant Earth lists it at £2,194. 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 angle33.8°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720566122
Dimensions9.63 × 6.47 × 4.01 mm
L/W Ratio1.49
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
9.63 mm6.47 mm1.55 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720566122
Side View
Table 59.0%Crown 33.8°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.0%

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: Oct 29
Current: £2,194 GBP|Low: £206 GBP|High: £3,694 GBP|Avg: £770 GBP|-40.6%
Brilliant Earth
Retailer 2
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October 31, 2026
Retailer 3£214 GBP
Retailer 19£240 GBP
Retailer 25£249 GBP
Retailer 5£266 GBP
Retailer 15£306 GBP
Retailer 7£375 GBP
Retailer 23£377 GBP
Retailer 24£437 GBP
Retailer 22£456 GBP
Retailer 11£461 GBP
Retailer 2£465 GBP
Retailer 12£528 GBP
Retailer 14£596 GBP
Retailer 21£618 GBP
Retailer 8£786 GBP
Retailer 6£816 GBP
Retailer 4£854 GBP
Retailer 18£879 GBP
Retailer 16£890 GBP
Retailer 17£894 GBP
Retailer 10£1,022 GBP
Retailer 20£1,070 GBP
Retailer 9£1,098 GBP
Retailer 13£1,425 GBP
Brilliant Earth£2,194 GBP

32 data points across 25 retailers

26 retailers£214 GBP to £2,194 GBP

A
Cheapest Retailer
-
£214 GBP
$287 USD
A
Retailer 2
-
£240 GBP
$321 USD
View
Final sale: no returns
A
Retailer 3
-
£249 GBP
$333 USD
View
A
Retailer 4
-
£266 GBP
$356 USD
View
A
Retailer 5
-
£306 GBP
HK$3,200 HKD
View
A
Retailer 6
-
£375 GBP
$502 USD
View
A
Retailer 7
-
£377 GBP
$505 USD
View
A
Retailer 8
-
£437 GBP
€558 EUR
View
A
Retailer 9
-
£456 GBP
ZAR 9,878 ZAR
View
A
Retailer 10
-
£461 GBP
$618 USD
View
A
Retailer 11
-
£465 GBP
View
A
Retailer 12
-
£528 GBP
A$1,088 AUD
View
A
Retailer 13
-
£596 GBP
$798 USD
View
A
Retailer 14
-
£618 GBP
A$1,273 AUD
View
B+
Retailer 15
-
£786 GBP
$1,053 USD
View
B+
Retailer 16
-
£816 GBP
$1,093 USD
View
B+
Retailer 17
-
£854 GBP
$1,144 USD
View
B+
Retailer 18
-
£879 GBP
$1,178 USD
View
B+
Retailer 19
-
£890 GBP
$1,193 USD
View
B+
Retailer 20
-
£894 GBP
SGD 1,619 SGD
View
B+
Retailer 21
-
£1,022 GBP
$1,369 USD
View
B+
Retailer 22
-
£1,070 GBP
View
B+
Retailer 23
-
£1,098 GBP
$1,471 USD
View
B+
Retailer 24
-
£1,425 GBP
A$2,937 AUD
View
Retailer 25
-
£1,814 GBP
$2,430 USD
View
Price last confirmed 33 days ago
Most Expensive
B
Brilliant Earth
15368126A · Oct 31
£2,194 GBP
$2,940 USD
View
25 more retailers have this diamond
Prices start from £214 GBPSave up to £1,980 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
£214 GBP