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Oval|Lab Grown|IGI

1.54ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG497145338

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG497145338

Diamond specifications and retailer prices

From £204 GBP
$274 USD
As of October 30, 2026
Save £684 GBP (77%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £888 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 1.54ct lab-grown oval diamond

This 1.54ct lab-grown oval sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG497145338 or 497145338. Listed at 24 retailers as of October 29, 2026, with prices from £204 to £888, a £684 spread on the same certified stone. Brilliant Earth lists it at £888. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.54
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497145338
Dimensions9.07 × 6.53 × 4.10 mm
L/W Ratio1.39
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
9.07 mm6.53 mm1.54 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497145338
Side View
Table 60.5%Crown 36.7°Girdle: THN-STKPavilion 40.4°Culet: NoneDepth 62.8%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Oct 30
Current: £888 GBP|Low: £141 GBP|High: £918 GBP|Avg: £479 GBP|-3.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 31, 2026
Retailer 12£204 GBP
Retailer 3£216 GBP
Retailer 10£310 GBP
Retailer 7£368 GBP
Retailer 5£390 GBP
Retailer 13£407 GBP
Retailer 2£415 GBP
Retailer 8£450 GBP
Retailer 4£480 GBP
Retailer 11£698 GBP
Retailer 9£708 GBP
Retailer 6£883 GBP
Brilliant Earth£888 GBP

43 data points across 13 retailers

24 retailers£204 GBP to £888 GBP

Retailer 1
-
£177 GBP
$237 USD
Price last confirmed 32 days ago
A
Retailer 2
-
£204 GBP
$274 USD
View
Final sale: no returns
Retailer 3
-
£205 GBP
$275 USD
View
Price last confirmed 17 days ago
Retailer 4
-
£205 GBP
$275 USD
View
Price last confirmed 36 days ago
Retailer 5
-
£216 GBP
$290 USD
View
Price last confirmed 31 days ago
A
Retailer 6
-
£219 GBP
$294 USD
View
Retailer 7
-
£219 GBP
$294 USD
View
Price last confirmed 21 days ago
Retailer 8
-
£219 GBP
$294 USD
View
Price last confirmed 28 days ago
A
Retailer 9
-
£258 GBP
HK$2,700 HKD
View
B+
Retailer 10
-
£310 GBP
$415 USD
View
A
Retailer 11
-
£368 GBP
€469 EUR
View
A
Retailer 12
-
£390 GBP
$522 USD
View
B+
Retailer 13
-
£407 GBP
$546 USD
View
B+
Retailer 14
-
£415 GBP
View
B+
Retailer 15
-
£450 GBP
A$928 AUD
View
B+
Retailer 16
-
£480 GBP
$644 USD
View
Retailer 17
-
£698 GBP
$935 USD
View
Price last confirmed 12 days ago
Retailer 18
-
£705 GBP
$945 USD
View
Price last confirmed 21 days ago
Retailer 19
-
£705 GBP
$945 USD
View
Price last confirmed 31 days ago
B
Retailer 20
-
£708 GBP
$948 USD
View
B
Retailer 21
-
£742 GBP
SGD 1,344 SGD
View
B
Retailer 22
-
£744 GBP
$997 USD
View
B
Retailer 23
-
£883 GBP
View
Most Expensive
B
Brilliant Earth
5063644A · Oct 29
£888 GBP
$1,190 USD
View
23 more retailers have this diamond
Prices start from £204 GBPSave up to £684 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
1.54ct Oval
£204 GBP