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Oval|Lab Grown|IGI

0.98ct D IF Oval Lab Grown Diamond

ID • D/IF • IGI LG818659133

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG818659133

Diamond specifications and retailer prices

From £139 GBP
$185 USD
As of October 29, 2026
Save £837 GBP (86%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £976 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 0.98ct lab-grown oval diamond

This 0.98ct lab-grown oval sits in the just-under-one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818659133 or 818659133. Listed at 18 retailers as of October 29, 2026, with prices from £139 to £976, a £837 spread on the same certified stone. Brilliant Earth lists it at £976. Flawless clarity in sub-one-carat stones is rarely visible to the naked eye over VS1, so you are paying a meaningful premium for grade rather than appearance.

The 4Cs

0.98
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.3°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818659133
Dimensions8.50 × 5.45 × 3.33 mm
L/W Ratio1.56
Girdle conditionFaceted
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
8.50 mm5.45 mm0.98 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818659133
Side View
Table 58.0%Crown 31.3°Girdle: STK-THKPavilion 40°Culet: NoneDepth 61.1%

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: £976 GBP|Low: £155 GBP|High: £976 GBP|Avg: £462 GBP
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 30, 2026
Retailer 7£156 GBP
Retailer 10£303 GBP
Retailer 4£303 GBP
Retailer 2£311 GBP
Retailer 6£311 GBP
Retailer 8£430 GBP
Retailer 12£438 GBP
Retailer 13£456 GBP
Retailer 9£544 GBP
Retailer 3£594 GBP
Retailer 5£679 GBP
Retailer 11£809 GBP
Brilliant Earth£976 GBP

41 data points across 13 retailers

18 retailers£139 GBP to £976 GBP

A
Cheapest Retailer
-
£139 GBP
$185 USD
A
Retailer 2
-
£156 GBP
$208 USD
View
Final sale: no returns
A
Retailer 3
-
£161 GBP
$214 USD
View
A
Retailer 4
-
£172 GBP
$229 USD
View
A
Retailer 5
-
£172 GBP
$229 USD
View
A
Retailer 6
-
£303 GBP
$404 USD
View
A
Retailer 7
-
£311 GBP
View
A
Retailer 8
-
£311 GBP
ZAR 6,694 ZAR
View
A
Retailer 9
-
£430 GBP
A$880 AUD
View
B+
Retailer 10
-
£438 GBP
$583 USD
View
B+
Retailer 11
-
£456 GBP
$607 USD
View
B+
Retailer 12
-
£538 GBP
SGD 969 SGD
View
B+
Retailer 13
-
£544 GBP
$725 USD
View
B+
Retailer 14
-
£553 GBP
$737 USD
View
B+
Retailer 15
-
£594 GBP
$791 USD
View
B+
Retailer 16
-
£679 GBP
$904 USD
View
B+
Retailer 17
-
£809 GBP
View
Most Expensive
B
Brilliant Earth
21421705A · Oct 29
£976 GBP
$1,300 USD
View
17 more retailers have this diamond
Prices start from £139 GBPSave up to £837 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
0.98ct Oval
£139 GBP