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Emerald|Lab Grown|IGI

1.73ct D IF Emerald Lab Grown Diamond

ID • D/IF • IGI LG815690517

Shape and cutting style on the report: Emerald cut

Certificate IGI LG815690517

Diamond specifications and retailer prices

From £276 GBP
$368 USD
As of October 29, 2026
Save £2,983 GBP (92%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: £3,259 GBP at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.73ct lab-grown emerald diamond

This 1.73ct lab-grown emerald sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG815690517 or 815690517. Listed at 19 retailers as of October 29, 2026, with prices from £276 to £3,259, a £2,983 spread on the same certified stone. Brilliant Earth lists it at £3,259. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle38.4°
Pavilion angle43.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG815690517
Dimensions8.49 × 5.48 × 3.72 mm
L/W Ratio1.55
Culet sizeLarge
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.49 mm5.48 mm1.73 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG815690517
Side View
Table 63.0%Crown 38.4°Girdle: MediumPavilion 43.6°Culet: LargeDepth 67.9%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: £3,259 GBP|Low: £276 GBP|High: £3,379 GBP|Avg: £858 GBP|-3.6%
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
Retailer 15
Retailer 16
October 30, 2026
Retailer 16£276 GBP
Retailer 4£417 GBP
Retailer 9£495 GBP
Retailer 8£525 GBP
Retailer 11£549 GBP
Retailer 15£557 GBP
Retailer 6£564 GBP
Retailer 3£716 GBP
Retailer 7£903 GBP
Retailer 12£974 GBP
Retailer 14£975 GBP
Retailer 10£978 GBP
Retailer 13£1,016 GBP
Retailer 2£1,159 GBP
Retailer 5£1,237 GBP
Brilliant Earth£3,259 GBP

19 data points across 16 retailers

19 retailers£276 GBP to £3,259 GBP

Retailer 1
-
£255 GBP
$339 USD
Price last confirmed 38 days ago
A
Retailer 2
-
£276 GBP
$368 USD
View
Final sale: no returns
Retailer 3
-
£312 GBP
$415 USD
View
Price last confirmed 37 days ago
A
Retailer 4
-
£417 GBP
$555 USD
View
A
Retailer 5
-
£495 GBP
$659 USD
View
A
Retailer 6
-
£525 GBP
ZAR 11,301 ZAR
View
A
Retailer 7
-
£549 GBP
View
A
Retailer 8
-
£557 GBP
€706 EUR
View
A
Retailer 9
-
£564 GBP
$751 USD
View
A
Retailer 10
-
£716 GBP
A$1,466 AUD
View
B+
Retailer 11
-
£903 GBP
$1,203 USD
View
B+
Retailer 12
-
£974 GBP
$1,297 USD
View
B+
Retailer 13
-
£975 GBP
$1,298 USD
View
B+
Retailer 14
-
£978 GBP
SGD 1,760 SGD
View
B+
Retailer 15
-
£1,016 GBP
$1,353 USD
View
B+
Retailer 16
-
£1,159 GBP
$1,544 USD
View
Retailer 17
-
£1,235 GBP
A$2,530 AUD
View
Price last confirmed 22 days ago
B+
Retailer 18
-
£1,237 GBP
View
Most Expensive
B
Brilliant Earth
20604516A · Oct 30
£3,259 GBP
$4,340 USD
View
18 more retailers have this diamond
Prices start from £276 GBPSave up to £2,983 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
1.73ct Emerald
£276 GBP