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Emerald|Lab Grown|IGI

1.73ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG425067306

Shape and cutting style on the report: Emerald cut

Certificate IGI LG425067306

Diamond specifications and retailer prices

From £716 GBP
$960 USD
As of October 30, 2026
Save £2,988 GBP (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,704 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown emerald diamond

This 1.73ct lab-grown emerald sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG425067306 or 425067306. Listed at 11 retailers as of October 29, 2026, with prices from £716 to £3,704, a £2,988 spread on the same certified stone. MOH London lists it at £3,704. 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

1.73
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle24.7°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067306
Dimensions7.79 × 5.76 × 3.97 mm
L/W Ratio1.35
Culet sizeLong
Cert comments
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Top View
7.79 mm5.76 mm1.73 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067306
Side View
Table 65.0%Crown 24.7°Girdle: MediumPavilion 41.6°Culet: LNGDepth 68.9%

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 30
Current: £3,704 GBP|Low: £716 GBP|High: £3,729 GBP|Avg: £1,906 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
Retailer 13
October 30, 2026
Retailer 2£716 GBP
Retailer 6£1,112 GBP
Retailer 11£1,210 GBP
Retailer 12£1,246 GBP
Retailer 7£1,290 GBP
Retailer 10£1,290 GBP
Retailer 13£1,418 GBP
Retailer 4£1,754 GBP
Retailer 8£2,033 GBP
Retailer 3£2,341 GBP
Retailer 9£2,418 GBP
Retailer 5£3,694 GBP
MOH London£3,704 GBP

17 data points across 13 retailers

11 retailers£716 GBP to £3,704 GBP

A
Cheapest Retailer
-
£716 GBP
$960 USD
B
Retailer 2
-
£1,112 GBP
$1,490 USD
View
B
Retailer 3
-
£1,210 GBP
$1,621 USD
View
B
Retailer 4
-
£1,246 GBP
$1,669 USD
View
Final sale: no returns
B
Retailer 5
-
£1,290 GBP
$1,729 USD
View
Retailer 6
-
£1,290 GBP
$1,729 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
£1,418 GBP
$1,900 USD
View
B
Retailer 8
-
£2,033 GBP
$2,724 USD
View
B
Retailer 9
-
£2,341 GBP
$3,137 USD
View
B
Retailer 10
-
£2,418 GBP
$3,240 USD
View
Most Expensive
B
MOH London
LG425067306 · Oct 29
£3,704 GBP
View
10 more retailers have this diamond
Prices start from £716 GBPSave up to £2,988 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
1.73ct Emerald
£716 GBP