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Round|Lab Grown|IGI

1.73ct D I1 Round Lab Grown Diamond

EX • D/I1 • IGI LG786625024

Shape and cutting style on the report: Round brilliant

Certificate IGI LG786625024

Diamond specifications and retailer prices

From £146 GBP
$195 USD
As of October 25, 2026
Save £742 GBP (84%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £887 GBP at MOH London · As of October 29, 2026
View at MOH London

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and I1 clarity (included), with a top-tier cut grade and certified by IGI LG786625024 or 786625024. Listed at 11 retailers as of October 25, 2026, with prices from £146 to £887, a £742 spread on the same certified stone. MOH London lists it at £887. 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
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.6°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG786625024
Dimensions7.69 × 7.66 × 4.76 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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 mm7.66 mm1.73 ctD / I1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG786625024
Side View
Table 57.0%Crown 35.6°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 62.0%

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 25
Current: £887 GBP|Low: £118 GBP|High: £909 GBP|Avg: £327 GBP|-2.4%
MOH London
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£118 GBP
Retailer 5£146 GBP
Retailer 6£178 GBP
Retailer 8£199 GBP
Retailer 10£220 GBP
Retailer 11£221 GBP
Retailer 2£363 GBP
Retailer 9£371 GBP
Retailer 7£414 GBP
Retailer 4£568 GBP
MOH London£887 GBP

22 data points across 11 retailers

11 retailers£146 GBP to £887 GBP

A
Cheapest Retailer
-
£146 GBP
$195 USD
A
Retailer 2
-
£178 GBP
$238 USD
View
A
Retailer 3
-
£199 GBP
$266 USD
View
Final sale: no returns
A
Retailer 4
-
£220 GBP
$295 USD
View
Retailer 5
-
£221 GBP
$296 USD
View
Price last confirmed 45 days ago
B+
Retailer 6
-
£363 GBP
€463 EUR
View
B+
Retailer 7
-
£371 GBP
$497 USD
View
B+
Retailer 8
-
£414 GBP
$555 USD
View
B
Retailer 9
-
£568 GBP
$761 USD
View
Retailer 10
-
£658 GBP
$881 USD
View
Price last confirmed 45 days ago
Most Expensive
B
MOH London
LG786625024 · Oct 29
£887 GBP
View
10 more retailers have this diamond
Prices start from £146 GBPSave up to £742 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 Round
£146 GBP