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Emerald|Lab Grown|IGI

1.70ct I SI1 Emerald Lab Grown Diamond

ID • I/SI1 • IGI LG440012310

Shape and cutting style on the report: Emerald cut

Certificate IGI LG440012310

Diamond specifications and retailer prices

From £1,100 GBP
$1,465 USD
As of October 27, 2026
Save £2,564 GBP (70%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,664 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.7ct lab-grown emerald diamond

This 1.7ct 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 LG440012310 or 440012310. Listed at 11 retailers as of October 27, 2026, with prices from £1,100 to £3,664, a £2,564 spread on the same certified stone. MOH London lists it at £3,664. 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

1.70
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle18°
Pavilion angle43.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012310
Dimensions7.93 × 5.62 × 3.86 mm
L/W Ratio1.41
Culet sizeLong
Cert comments
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Top View
7.93 mm5.62 mm1.70 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440012310
Side View
Table 59.0%Crown 18°Girdle: MED-STKPavilion 43.5°Culet: LNGDepth 68.7%

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 27
Current: £3,664 GBP|Low: £1,056 GBP|High: £3,688 GBP|Avg: £1,845 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
Retailer 14
October 29, 2026
Retailer 2£1,100 GBP
Retailer 7£1,164 GBP
Retailer 12£1,197 GBP
Retailer 13£1,231 GBP
Retailer 8£1,276 GBP
Retailer 11£1,276 GBP
Retailer 14£1,404 GBP
Retailer 6£1,415 GBP
Retailer 4£1,737 GBP
Retailer 9£2,012 GBP
Retailer 3£2,316 GBP
Retailer 10£2,392 GBP
Retailer 5£3,654 GBP
MOH London£3,664 GBP

16 data points across 14 retailers

11 retailers£1,100 GBP to £3,664 GBP

B+
Cheapest Retailer
-
£1,100 GBP
$1,465 USD
B+
Retailer 2
-
£1,164 GBP
$1,550 USD
View
B+
Retailer 3
-
£1,197 GBP
$1,594 USD
View
B
Retailer 4
-
£1,231 GBP
$1,639 USD
View
Final sale: no returns
B
Retailer 5
-
£1,276 GBP
$1,699 USD
View
B
Retailer 6
-
£1,276 GBP
$1,699 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
£1,404 GBP
$1,870 USD
View
B
Retailer 8
-
£2,012 GBP
$2,679 USD
View
B
Retailer 9
-
£2,316 GBP
$3,084 USD
View
B
Retailer 10
-
£2,392 GBP
$3,185 USD
View
Most Expensive
B
MOH London
LG440012310 · Oct 29
£3,664 GBP
View
10 more retailers have this diamond
Prices start from £1,100 GBPSave up to £2,564 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+
1.70ct Emerald
£1,100 GBP