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Oval|Lab Grown|IGI

0.98ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG770669342

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG770669342

Diamond specifications and retailer prices

From £205 GBP
As of October 30, 2026
Save £813 GBP (80%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,018 GBP at MOH London · As of October 26, 2026
View at MOH London

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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG770669342 or 770669342. Listed at 7 retailers as of October 26, 2026, with prices from £205 to £1,018, a £813 spread on the same certified stone. MOH London lists it at £1,018. 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

0.98
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770669342
Dimensions8.38 × 5.44 × 3.26 mm
L/W Ratio1.54
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.38 mm5.44 mm0.98 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770669342
Side View
Table 61.0%Crown 35.3°Girdle: STK-THKPavilion 37.9°Culet: NoneDepth 59.9%

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 30
Current: £1,018 GBP|Low: £196 GBP|High: £1,029 GBP|Avg: £341 GBP|-0.9%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 30, 2026
Retailer 2£205 GBP
Retailer 6£206 GBP
Retailer 4£230 GBP
Retailer 3£231 GBP
Retailer 5£305 GBP
MOH London£1,018 GBP

40 data points across 6 retailers

7 retailers£205 GBP to £1,018 GBP

A
Cheapest Retailer
-
£205 GBP
A
Retailer 2
-
£206 GBP
$276 USD
View
A
Retailer 3
-
£230 GBP
$308 USD
View
A
Retailer 4
-
£231 GBP
View
B+
Retailer 5
-
£305 GBP
$408 USD
View
B+
Retailer 6
-
£433 GBP
$581 USD
View
Most Expensive
B
MOH London
LG770669342 · Oct 26
£1,018 GBP
View
6 more retailers have this diamond
Prices start from £205 GBPSave up to £813 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
£205 GBP