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Oval|Lab Grown|IGI

1.68ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG698525958

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG698525958

Diamond specifications and retailer prices

From £220 GBP
$295 USD
As of October 29, 2026
Save £880 GBP (80%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: £1,100 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.68ct lab-grown oval diamond

This 1.68ct 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 LG698525958 or 698525958. Listed at 9 retailers as of October 29, 2026, with prices from £220 to £1,100, a £880 spread on the same certified stone. MOH London lists it at £1,100. 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

1.68
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG698525958
Dimensions9.66 × 6.67 × 4.11 mm
L/W Ratio1.45
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.66 mm6.67 mm1.68 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG698525958
Side View
Table 60.0%Crown 34.9°Girdle: MED-STKPavilion 40°Culet: NoneDepth 61.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £1,100 GBP|Low: £176 GBP|High: £1,107 GBP|Avg: £569 GBP|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
October 30, 2026
Retailer 7£220 GBP
Retailer 11£246 GBP
Retailer 10£255 GBP
Retailer 2£305 GBP
Retailer 9£447 GBP
Retailer 5£448 GBP
Retailer 4£492 GBP
Retailer 12£625 GBP
Retailer 3£732 GBP
Retailer 6£839 GBP
Retailer 8£878 GBP
MOH London£1,100 GBP

36 data points across 12 retailers

9 retailers£220 GBP to £1,100 GBP

A
Cheapest Retailer
-
£220 GBP
$295 USD
A
Retailer 2
-
£246 GBP
$330 USD
View
Final sale: no returns
A
Retailer 3
-
£255 GBP
$342 USD
View
A
Retailer 4
-
£305 GBP
View
B+
Retailer 5
-
£447 GBP
$599 USD
View
A
Retailer 6
-
£448 GBP
$600 USD
View
B
Retailer 7
-
£839 GBP
$1,124 USD
View
B
Retailer 8
-
£878 GBP
$1,176 USD
View
Most Expensive
B
MOH London
LG698525958 · Oct 29
£1,100 GBP
View
8 more retailers have this diamond
Prices start from £220 GBPSave up to £880 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
1.68ct Oval
£220 GBP