CaratHunter
Plans
Emerald|Lab Grown|IGI

1.51ct F SI1 Emerald Lab Grown Diamond

ID • F/SI1 • IGI LG561263170

Shape and cutting style on the report: Emerald cut

Certificate IGI LG561263170

Diamond specifications and retailer prices

From £143 GBP
As of November 6, 2026
Save £726 GBP (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: £868 GBP at Reve Diamonds · As of November 6, 2026
View at Reve 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG561263170 or 561263170. Listed at 15 retailers as of November 6, 2026, with prices from £143 to £868, a £726 spread on the same certified stone. Reve Diamonds lists it at £868. 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

1.51
Carat
F
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle28.5°
Pavilion angle36.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG561263170
Dimensions7.70 × 5.20 × 3.52 mm
L/W Ratio1.48
Culet sizeLong
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.70 mm5.20 mm1.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG561263170
Side View
Table 61.0%Crown 28.5°Girdle: MediumPavilion 36.5°Culet: LNGDepth 67.7%

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: Nov 6
Current: £319 GBP|Low: £137 GBP|High: £847 GBP|Avg: £377 GBP|+3.4%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 9£143 GBP
Retailer 6£159 GBP
Retailer 10£177 GBP
Retailer 11£177 GBP
Retailer 3£239 GBP
Retailer 5£297 GBP
Retailer 1£319 GBP
Retailer 2£369 GBP
Retailer 8£571 GBP
Retailer 7£817 GBP
Retailer 4£825 GBP

45 data points across 11 retailers

15 retailers£143 GBP to £868 GBP

A
Cheapest Retailer
-
£143 GBP
A
Retailer 2
-
£159 GBP
View
Final sale: no returns
A
Retailer 3
-
£166 GBP
View
A
Retailer 4
-
£177 GBP
View
Retailer 5
-
£177 GBP
View
Price last confirmed 12 days ago
B+
Retailer 6
-
£239 GBP
View
Retailer 7
-
£297 GBP
View
Price last confirmed 8 days ago
A
Retailer 8
-
£319 GBP
View
B+
Retailer 9
-
£369 GBP
View
B+
Retailer 10
-
£569 GBP
View
B+
Retailer 11
-
£571 GBP
View
B
Retailer 12
-
£609 GBP
View
B
Retailer 13
-
£817 GBP
View
B
Retailer 14
-
£825 GBP
View
Most Expensive
B
Reve Diamonds
4DDF114A3 · Nov 6
£868 GBP
$1,169 USD
View
14 more retailers have this diamond
Prices start from £143 GBPSave up to £726 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
1.51ct Emerald
£143 GBP