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Emerald|Lab Grown|IGI

1.15ct E IF Emerald Lab Grown Diamond

ID • E/IF • IGI LG729515550

Shape and cutting style on the report: Emerald cut

Certificate IGI LG729515550

Diamond specifications and retailer prices

From £138 GBP
$185 USD
As of October 30, 2026
Save £750 GBP (84%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: £888 GBP at Rare Carat · As of October 28, 2026
View at Rare Carat

About this 1.15ct lab-grown emerald diamond

This 1.15ct lab-grown emerald sits in the classic one-carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG729515550 or 729515550. Listed at 17 retailers as of October 28, 2026, with prices from £138 to £888, a £750 spread on the same certified stone. Rare Carat lists it at £888. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.15
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG729515550
Dimensions6.95 × 5.07 × 3.27 mm
L/W Ratio1.37
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
6.95 mm5.07 mm1.15 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG729515550
Side View
Table 65.0%Crown 31.5°Girdle: MediumPavilion 40.9°Culet: LargeDepth 64.5%

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: £888 GBP|Low: £132 GBP|High: £903 GBP|Avg: £388 GBP|-1.7%
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
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Retailer 15
Retailer 16
October 30, 2026
Retailer 15£138 GBP
Retailer 7£154 GBP
Retailer 4£160 GBP
Retailer 14£171 GBP
Retailer 16£171 GBP
Retailer 5£237 GBP
Retailer 11£293 GBP
Retailer 9£309 GBP
Retailer 8£353 GBP
Retailer 12£417 GBP
Retailer 3£549 GBP
Retailer 2£573 GBP
Retailer 13£580 GBP
Retailer 10£803 GBP
Retailer 6£854 GBP
Rare Carat£888 GBP

45 data points across 16 retailers

17 retailers£138 GBP to £888 GBP

A
Cheapest Retailer
-
£138 GBP
$185 USD
A
Retailer 2
-
£154 GBP
$206 USD
View
Final sale: no returns
A
Retailer 3
-
£160 GBP
$214 USD
View
A
Retailer 4
-
£171 GBP
$229 USD
View
A
Retailer 5
-
£171 GBP
$229 USD
View
B+
Retailer 6
-
£237 GBP
$318 USD
View
A
Retailer 7
-
£293 GBP
ZAR 6,350 ZAR
View
A
Retailer 8
-
£309 GBP
View
A
Retailer 9
-
£353 GBP
$473 USD
View
A
Retailer 10
-
£417 GBP
A$859 AUD
View
B+
Retailer 11
-
£520 GBP
$697 USD
View
B+
Retailer 12
-
£549 GBP
$736 USD
View
B+
Retailer 13
-
£573 GBP
$768 USD
View
B+
Retailer 14
-
£580 GBP
$777 USD
View
B+
Retailer 15
-
£803 GBP
View
B
Retailer 16
-
£854 GBP
$1,145 USD
View
Most Expensive
B
Rare Carat
SS18563_l_729515550 · Oct 28
£888 GBP
$1,190 USD
View
16 more retailers have this diamond
Prices start from £138 GBPSave up to £750 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
1.15ct Emerald
£138 GBP