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Oval|Lab Grown|IGI

1.81ct D SI1 Oval Lab Grown Diamond

ID • D/SI1 • IGI LG789612117

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG789612117

Diamond specifications and retailer prices

From £436 GBP
€557 EUR
As of October 31, 2026
Save £687 GBP (61%) vs most expensive(unlock to see where)
7 retailers carry this diamond
Most expensive: £1,123 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.81ct lab-grown oval diamond

This 1.81ct 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 LG789612117 or 789612117. Listed at 7 retailers as of October 29, 2026, with prices from £436 to £1,123, a £687 spread on the same certified stone. MOH London lists it at £1,123. 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

1.81
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.5°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG789612117
Dimensions9.80 × 6.79 × 4.25 mm
L/W Ratio1.44
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
9.80 mm6.79 mm1.81 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG789612117
Side View
Table 56.0%Crown 34.5°Girdle: MED-STKPavilion 39.9°Culet: NoneDepth 62.6%

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 31
Current: £1,123 GBP|Low: £435 GBP|High: £1,131 GBP|Avg: £597 GBP|-0.7%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 31, 2026
Retailer 2£436 GBP
Retailer 7£456 GBP
Retailer 5£481 GBP
Retailer 3£495 GBP
Retailer 6£527 GBP
Retailer 4£1,000 GBP
MOH London£1,123 GBP

21 data points across 7 retailers

7 retailers£436 GBP to £1,123 GBP

A
Cheapest Retailer
-
£436 GBP
€557 EUR
A
Retailer 2
-
£456 GBP
$611 USD
View
A
Retailer 3
-
£481 GBP
$645 USD
View
A
Retailer 4
-
£495 GBP
View
B+
Retailer 5
-
£527 GBP
$706 USD
View
B
Retailer 6
-
£1,000 GBP
$1,340 USD
View
Most Expensive
B
MOH London
LG789612117 · Oct 29
£1,123 GBP
View
6 more retailers have this diamond
Prices start from £436 GBPSave up to £687 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
1.81ct Oval
£436 GBP