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Emerald|Lab Grown|IGI

1.81ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG447000877

Shape and cutting style on the report: Emerald cut

Certificate IGI LG447000877

Diamond specifications and retailer prices

From £125 GBP
$167 USD
As of November 1, 2026
Save £689 GBP (85%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: £813 GBP at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 1.81ct lab-grown emerald diamond

This 1.81ct lab-grown emerald sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447000877 or 447000877. Listed at 13 retailers as of November 1, 2026, with prices from £125 to £813, a £689 spread on the same certified stone. Rare Carat lists it at £813. 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
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle20.7°
Pavilion angle44.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447000877
Dimensions7.86 × 5.83 × 3.94 mm
L/W Ratio1.35
Culet sizeLong
Cert comments
This Laboratory grown diamond was created by chemical vapor deposition process (CVD) Type IIa
Top View
7.86 mm5.83 mm1.81 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447000877
Side View
Table 65.5%Crown 20.7°Girdle: MediumPavilion 44.7°Culet: LNGDepth 67.6%

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: Nov 1
Current: £813 GBP|Low: £99 GBP|High: £1,112 GBP|Avg: £459 GBP|+3.9%
Rare Carat
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 29, 2026
Retailer 7£125 GBP
Retailer 10£140 GBP
Retailer 8£155 GBP
Retailer 13£249 GBP
Retailer 3£276 GBP
Retailer 9£278 GBP
Retailer 11£359 GBP
Retailer 5£414 GBP
Retailer 4£508 GBP
Retailer 6£526 GBP
Retailer 2£728 GBP
Rare Carat£813 GBP
Retailer 12£1,112 GBP

16 data points across 13 retailers

13 retailers£125 GBP to £813 GBP

A
Cheapest Retailer
-
£125 GBP
$167 USD
A
Retailer 2
-
£140 GBP
$187 USD
View
Final sale: no returns
A
Retailer 3
-
£145 GBP
$194 USD
View
Retailer 4
-
£155 GBP
$208 USD
View
Price last confirmed 7 days ago
A
Retailer 5
-
£155 GBP
$208 USD
View
A
Retailer 6
-
£172 GBP
HK$1,800 HKD
View
B+
Retailer 7
-
£278 GBP
$373 USD
View
A
Retailer 8
-
£359 GBP
$481 USD
View
B+
Retailer 9
-
£498 GBP
$667 USD
View
B+
Retailer 10
-
£508 GBP
SGD 919 SGD
View
B+
Retailer 11
-
£526 GBP
$705 USD
View
B+
Retailer 12
-
£728 GBP
View
Most Expensive
B
Rare Carat
1178_l_447000877 · Nov 1
£813 GBP
$1,090 USD
View
12 more retailers have this diamond
Prices start from £125 GBPSave up to £689 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 Emerald
£125 GBP