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Emerald|Lab Grown|IGI

1.55ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG526271834

Shape and cutting style on the report: Emerald cut

Certificate IGI LG526271834

Diamond specifications and retailer prices

From £199 GBP
$267 USD
As of October 30, 2026
Save £1,107 GBP (85%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: £1,306 GBP at Do Amore Diamonds · As of October 29, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown emerald diamond

This 1.55ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a standard cut grade and certified by IGI LG526271834 or 526271834. Listed at 12 retailers as of October 29, 2026, with prices from £199 to £1,306, a £1,107 spread on the same certified stone. Do Amore Diamonds lists it at £1,306. 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

1.55
Carat
D
Colour
SI1
Clarity
Good
Cut

Specifications

CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle26.9°
Pavilion angle42.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG526271834
Dimensions7.72 × 5.50 × 3.73 mm
L/W Ratio1.40
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
7.72 mm5.50 mm1.55 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG526271834
Side View
Table 67.0%Crown 26.9°Girdle: MediumPavilion 42.8°Culet: LNGDepth 67.8%

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: £305 GBP|Low: £109 GBP|High: £1,552 GBP|Avg: £515 GBP|+3.2%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 29, 2026
Retailer 3£109 GBP
Retailer 11£199 GBP
Retailer 2£228 GBP
Retailer 9£264 GBP
Retailer 1£305 GBP
Retailer 10£377 GBP
Retailer 6£572 GBP
Retailer 8£624 GBP
Retailer 7£743 GBP
Retailer 4£872 GBP
Retailer 5£1,246 GBP

20 data points across 11 retailers

12 retailers£199 GBP to £1,306 GBP

A
Cheapest Retailer
-
£199 GBP
$267 USD
B
Retailer 2
-
£228 GBP
$306 USD
View
B+
Retailer 3
-
£264 GBP
$354 USD
View
B+
Retailer 4
-
£305 GBP
€389 EUR
View
B+
Retailer 5
-
£377 GBP
$505 USD
View
Retailer 6
-
£572 GBP
$767 USD
View
Price last confirmed 11 days ago
B
Retailer 7
-
£624 GBP
$837 USD
View
B
Retailer 8
-
£652 GBP
$874 USD
View
B
Retailer 9
-
£743 GBP
$995 USD
View
B
Retailer 10
-
£872 GBP
View
C
Retailer 11
-
£1,246 GBP
$1,670 USD
View
Most Expensive
C
Do Amore Diamonds
27-8E80F1731 · Oct 29
£1,306 GBP
$1,750 USD
View
11 more retailers have this diamond
Prices start from £199 GBPSave up to £1,107 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
1.55ct Emerald
£199 GBP