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Emerald|Lab Grown|IGI

1.51ct H SI1 Emerald Lab Grown Diamond

GD • H/SI1 • IGI LG570349268

Shape and cutting style on the report: Emerald cut

Certificate IGI LG570349268

Diamond specifications and retailer prices

From £141 GBP
As of November 4, 2026
Save £1,070 GBP (88%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: £1,211 GBP at Do Amore Diamonds · As of November 4, 2026
View at Do Amore Diamonds

About this 1.51ct lab-grown emerald diamond

This 1.51ct lab-grown emerald sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG570349268 or 570349268. Listed at 14 retailers as of November 4, 2026, with prices from £141 to £1,211, a £1,070 spread on the same certified stone. Do Amore Diamonds lists it at £1,211. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.51
Carat
H
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle36°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG570349268
Dimensions7.57 × 5.49 × 3.51 mm
L/W Ratio1.38
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 Faint Blue
Top View
7.57 mm5.49 mm1.51 ctH / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG570349268
Side View
Table 64.5%Crown 36°Girdle: Slightly ThickPavilion 37.6°Culet: LNGDepth 63.9%

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: Nov 4
Current: £1,211 GBP|Low: £126 GBP|High: £1,211 GBP|Avg: £441 GBP
Do Amore Diamonds
Retailer 2
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Retailer 16
November 5, 2026
Retailer 14£126 GBP
Retailer 4£141 GBP
Retailer 16£146 GBP
Retailer 15£155 GBP
Retailer 13£157 GBP
Retailer 11£212 GBP
Retailer 8£247 GBP
Retailer 5£320 GBP
Retailer 3£351 GBP
Retailer 10£532 GBP
Retailer 12£556 GBP
Retailer 9£565 GBP
Retailer 7£684 GBP
Retailer 2£806 GBP
Retailer 6£817 GBP
Do Amore Diamonds£1,211 GBP

18 data points across 16 retailers

14 retailers£141 GBP to £1,211 GBP

Retailer 1
-
£126 GBP
Price last confirmed 38 days ago
B+
Retailer 2
-
£141 GBP
View
Final sale: no returns
Retailer 3
-
£146 GBP
View
Price last confirmed 43 days ago
Retailer 4
-
£155 GBP
View
Price last confirmed 39 days ago
B
Retailer 5
-
£212 GBP
View
Retailer 6
-
£247 GBP
View
Price last confirmed 63 days ago
B+
Retailer 7
-
£351 GBP
View
B+
Retailer 8
-
£532 GBP
View
Retailer 9
-
£556 GBP
View
Price last confirmed 37 days ago
Retailer 10
-
£565 GBP
View
Price last confirmed 9 days ago
B+
Retailer 11
-
£684 GBP
View
B+
Retailer 12
-
£806 GBP
View
B+
Retailer 13
-
£817 GBP
View
Most Expensive
B
Do Amore Diamonds
27-A17B467B8 · Nov 4
£1,211 GBP
$1,630 USD
View
13 more retailers have this diamond
Prices start from £141 GBPSave up to £1,070 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+
1.51ct Emerald
£141 GBP