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Emerald|Lab Grown|IGI

1.17ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG492135904

Shape and cutting style on the report: Emerald cut

Certificate IGI LG492135904

Diamond specifications and retailer prices

From £112 GBP
As of November 4, 2026
Save £965 GBP (90%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: £1,077 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.17ct lab-grown emerald diamond

This 1.17ct lab-grown emerald sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492135904 or 492135904. Listed at 18 retailers as of November 4, 2026, with prices from £112 to £1,077, a £965 spread on the same certified stone. Do Amore Diamonds lists it at £1,077. 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

1.17
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle21.3°
Pavilion angle37.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492135904
Dimensions7.25 × 4.86 × 3.33 mm
L/W Ratio1.49
Culet sizeLong
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.25 mm4.86 mm1.17 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492135904
Side View
Table 57.0%Crown 21.3°Girdle: MED-STKPavilion 37.5°Culet: LNGDepth 68.5%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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Price History

Last verified: Nov 4
Current: £270 GBP|Low: £108 GBP|High: £727 GBP|Avg: £295 GBP|+3.7%
Retailer 1
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
November 6, 2026
Retailer 6£109 GBP
Retailer 10£112 GBP
Retailer 3£126 GBP
Retailer 9£130 GBP
Retailer 12£140 GBP
Retailer 14£217 GBP
Retailer 8£268 GBP
Retailer 1£270 GBP
Retailer 5£317 GBP
Retailer 4£325 GBP
Retailer 13£473 GBP
Retailer 11£495 GBP
Retailer 2£513 GBP
Retailer 7£718 GBP

45 data points across 14 retailers

18 retailers£112 GBP to £1,077 GBP

A
Cheapest Retailer
-
£112 GBP
A
Retailer 2
-
£126 GBP
View
Final sale: no returns
A
Retailer 3
-
£130 GBP
View
A
Retailer 4
-
£140 GBP
View
B+
Retailer 5
-
£217 GBP
View
A
Retailer 6
-
£238 GBP
View
Retailer 7
-
£266 GBP
View
Price last confirmed 22 days ago
Retailer 8
-
£268 GBP
View
Price last confirmed 8 days ago
A
Retailer 9
-
£270 GBP
View
B+
Retailer 10
-
£317 GBP
View
B+
Retailer 11
-
£325 GBP
View
B
Retailer 12
-
£473 GBP
View
B
Retailer 13
-
£495 GBP
View
B
Retailer 14
-
£513 GBP
View
B
Retailer 15
-
£623 GBP
View
B
Retailer 16
-
£678 GBP
View
B
Retailer 17
-
£718 GBP
View
Most Expensive
B
Do Amore Diamonds
27-FEB7C5732 · Nov 4
£1,077 GBP
$1,450 USD
View
17 more retailers have this diamond
Prices start from £112 GBPSave up to £965 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
1.17ct Emerald
£112 GBP