CaratHunter
Plans
Round|Lab Grown|IGI

1.80ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG770689614

Shape and cutting style on the report: Round brilliant

Certificate IGI LG770689614

Diamond specifications and retailer prices

From £142 GBP
$191 USD
As of November 1, 2026
Save £683 GBP (83%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: £825 GBP at MOH London · As of November 1, 2026
View at MOH London

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round 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 LG770689614 or 770689614. Listed at 10 retailers as of November 1, 2026, with prices from £142 to £825, a £683 spread on the same certified stone. MOH London lists it at £825. 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

1.80
Carat
F
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.4°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG770689614
Dimensions7.89 × 7.84 × 4.70 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.89 mm7.84 mm1.80 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG770689614
Side View
Table 62.0%Crown 33.4°Girdle: MED-STKPavilion 41°Culet: NoneDepth 59.8%

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: Nov 1
Current: £825 GBP|Low: £139 GBP|High: £849 GBP|Avg: £494 GBP|-2.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
November 1, 2026
Retailer 13£142 GBP
Retailer 9£165 GBP
Retailer 2£302 GBP
Retailer 7£326 GBP
Retailer 3£337 GBP
Retailer 10£433 GBP
Retailer 11£568 GBP
Retailer 8£569 GBP
Retailer 4£648 GBP
Retailer 6£659 GBP
Retailer 5£672 GBP
Retailer 12£715 GBP
MOH London£825 GBP

29 data points across 13 retailers

10 retailers£142 GBP to £825 GBP

A
Cheapest Retailer
-
£142 GBP
$191 USD
A
Retailer 2
-
£165 GBP
$222 USD
View
A
Retailer 3
-
£302 GBP
€386 EUR
View
Retailer 4
-
£326 GBP
View
Price last confirmed 16 days ago
B+
Retailer 5
-
£433 GBP
$581 USD
View
B+
Retailer 6
-
£568 GBP
$762 USD
View
B+
Retailer 7
-
£569 GBP
$764 USD
View
B
Retailer 8
-
£659 GBP
$885 USD
View
Retailer 9
-
£715 GBP
SGD 1,296 SGD
View
Price last confirmed 20 days ago
Most Expensive
B
MOH London
LG770689614 · Nov 1
£825 GBP
View
9 more retailers have this diamond
Prices start from £142 GBPSave up to £683 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
1.80ct Round
£142 GBP