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Emerald|Lab Grown|IGI

1.00ct D SI1 Emerald Lab Grown Diamond

ID • D/SI1 • IGI LG559295268

Shape and cutting style on the report: Emerald cut

Certificate IGI LG559295268

Diamond specifications and retailer prices

From £115 GBP
$154 USD
As of October 30, 2026
Save £629 GBP (85%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £744 GBP at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1ct lab-grown emerald diamond

This 1ct 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 LG559295268 or 559295268. Listed at 17 retailers as of October 30, 2026, with prices from £115 to £744, a £629 spread on the same certified stone. Reve Diamonds lists it at £744. 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

1.00
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.4°
Pavilion angle44.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG559295268
Dimensions6.66 × 4.79 × 3.22 mm
L/W Ratio1.39
Culet sizeLarge
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
6.66 mm4.79 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG559295268
Side View
Table 62.0%Crown 34.4°Girdle: MediumPavilion 44.3°Culet: LargeDepth 67.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £418 GBP|Low: £81 GBP|High: £744 GBP|Avg: £309 GBP|-20.0%
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
Reve Diamonds
October 30, 2026
Retailer 2£103 GBP
Retailer 10£115 GBP
Retailer 3£126 GBP
Retailer 12£128 GBP
Retailer 4£173 GBP
Retailer 6£219 GBP
Retailer 7£226 GBP
Retailer 8£243 GBP
Retailer 13£311 GBP
Retailer 11£323 GBP
Retailer 1£418 GBP
Retailer 5£454 GBP
Retailer 9£600 GBP
Reve Diamonds£744 GBP

40 data points across 14 retailers

17 retailers£115 GBP to £744 GBP

Retailer 1
-
£103 GBP
$138 USD
Price last confirmed 37 days ago
A
Retailer 2
-
£115 GBP
$154 USD
View
Final sale: no returns
Retailer 3
-
£120 GBP
$161 USD
View
Price last confirmed 36 days ago
Retailer 4
-
£126 GBP
$169 USD
View
Price last confirmed 38 days ago
Retailer 5
-
£153 GBP
HK$1,600 HKD
View
Price last confirmed 56 days ago
B+
Retailer 6
-
£173 GBP
$232 USD
View
A
Retailer 7
-
£219 GBP
View
A
Retailer 8
-
£226 GBP
€288 EUR
View
A
Retailer 9
-
£243 GBP
View
B+
Retailer 10
-
£311 GBP
$417 USD
View
B+
Retailer 11
-
£323 GBP
$433 USD
View
B+
Retailer 12
-
£385 GBP
View
Retailer 13
-
£393 GBP
$527 USD
View
Price last confirmed 44 days ago
B+
Retailer 14
-
£418 GBP
$560 USD
View
B
Retailer 15
-
£454 GBP
$608 USD
View
B
Retailer 16
-
£600 GBP
View
Most Expensive
B
Reve Diamonds
4FB6DB383 · Oct 30
£744 GBP
$997 USD
View
16 more retailers have this diamond
Prices start from £115 GBPSave up to £629 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
1.00ct Emerald
£115 GBP