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Oval|Lab Grown|IGI

1.81ct G SI1 Oval Lab Grown Diamond

ID • G/SI1 • IGI LG487172867

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG487172867

Diamond specifications and retailer prices

From £888 GBP
$1,190 USD
As of October 31, 2026
Save £1,818 GBP (67%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £3,015 GBP at NZ Jewellers · As of October 31, 2026
View at NZ Jewellers

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 G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487172867 or 487172867. Listed at 14 retailers as of October 31, 2026, with a 205% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
G
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487172867
Dimensions9.44 × 6.95 × 4.18 mm
L/W Ratio1.36
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
9.44 mm6.95 mm1.81 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487172867
Side View
Table 61.5%Crown 34.6°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 60.1%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £3,015 GBP|Low: £888 GBP|High: £4,656 GBP|Avg: £2,077 GBP
NZ Jewellers
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 6£888 GBP
Retailer 10£1,387 GBP
Retailer 13£1,509 GBP
Retailer 3£1,552 GBP
Retailer 4£1,609 GBP
Retailer 11£1,609 GBP
Retailer 5£1,735 GBP
Retailer 7£2,208 GBP
Retailer 2£2,212 GBP
Retailer 12£2,522 GBP
Retailer 9£2,706 GBP
NZ Jewellers£3,015 GBP
Retailer 8£4,619 GBP

42 data points across 13 retailers

14 retailers£888 GBP to £2,706 GBP

B+
Cheapest Retailer
-
£888 GBP
$1,190 USD
B
Retailer 2
-
£1,387 GBP
$1,858 USD
View
B
Retailer 3
-
£1,509 GBP
$2,022 USD
View
B
Retailer 4
-
£1,552 GBP
$2,080 USD
View
Final sale: no returns
B
Retailer 5
-
£1,609 GBP
$2,156 USD
View
Retailer 6
-
£1,609 GBP
$2,156 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
£1,735 GBP
$2,325 USD
View
B
Retailer 8
-
£2,208 GBP
View
B
Retailer 9
-
£2,212 GBP
View
B
Retailer 10
-
£2,522 GBP
$3,379 USD
View
B
Retailer 11
-
£2,706 GBP
$3,626 USD
View
Most Expensive
NZ Jewellers
f63556bc-fcef-455d-9283-50ff876dc9c5 · Oct 31
£3,015 GBP
$4,040 USD
View
Price under review
11 more retailers have this diamond
Prices start from £888 GBPSave up to £1,818 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.

B+
1.81ct Oval
£888 GBP