Emerald|Lab Grown|IGI

1.55ct D SI1 Emerald Lab Grown Diamond

GD • D/SI1 • IGI LG497146596

Shape and cutting style on the report: Emerald cut

Certificate IGI LG497146596

Diamond specifications and retailer prices

From £157 GBP
$211 USD
As of October 30, 2026
Save £790 GBP (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £948 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 LG497146596 or 497146596. Listed at 15 retailers as of October 29, 2026, with prices from £157 to £948, a £790 spread on the same certified stone. Brilliant Earth lists it at £948. 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 angle27.7°
Pavilion angle42°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497146596
Dimensions7.69 × 5.54 × 3.81 mm
L/W Ratio1.39
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
7.69 mm5.54 mm1.55 ctD / SI1
OriginLab Grown
CutGood
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497146596
Side View
Table 67.5%Crown 27.7°Girdle: MediumPavilion 42°Culet: LNGDepth 68.8%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: £948 GBP|Low: £140 GBP|High: £948 GBP|Avg: £402 GBP
Brilliant Earth
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
October 30, 2026
Retailer 12£157 GBP
Retailer 6£170 GBP
Retailer 10£183 GBP
Retailer 9£196 GBP
Retailer 14£196 GBP
Retailer 3£269 GBP
Retailer 7£335 GBP
Retailer 2£362 GBP
Retailer 4£387 GBP
Retailer 13£629 GBP
Retailer 11£631 GBP
Retailer 5£669 GBP
Retailer 8£789 GBP
Brilliant Earth£948 GBP

42 data points across 14 retailers

15 retailers£157 GBP to £948 GBP

B+
Cheapest Retailer
-
£157 GBP
$211 USD
B+
Retailer 2
-
£170 GBP
$228 USD
View
Final sale: no returns
B+
Retailer 3
-
£183 GBP
$245 USD
View
B+
Retailer 4
-
£196 GBP
$262 USD
View
B+
Retailer 5
-
£196 GBP
$262 USD
View
B+
Retailer 6
-
£269 GBP
$360 USD
View
B+
Retailer 7
-
£335 GBP
€428 EUR
View
B+
Retailer 8
-
£362 GBP
View
B+
Retailer 9
-
£387 GBP
$519 USD
View
B
Retailer 10
-
£517 GBP
$693 USD
View
B
Retailer 11
-
£629 GBP
$843 USD
View
Retailer 12
-
£631 GBP
$846 USD
View
Price last confirmed 11 days ago
B
Retailer 13
-
£669 GBP
$896 USD
View
B
Retailer 14
-
£789 GBP
View
Most Expensive
C
Brilliant Earth
8639375A · Oct 29
£948 GBP
$1,270 USD
View
14 more retailers have this diamond
Prices start from £157 GBPSave up to £790 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+
1.55ct Emerald
£157 GBP