CaratHunter
Plans
Heart|Lab Grown|IGI

0.89ct E SI1 Heart Lab Grown Diamond

EX • E/SI1 • IGI LG766665496

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG766665496

Diamond specifications and retailer prices

From £180 GBP
$240 USD
As of October 29, 2026
Save £527 GBP (75%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: £708 GBP at MOH London · As of October 25, 2026
View at MOH London

About this 0.89ct lab-grown heart diamond

This 0.89ct lab-grown heart sits in the just-under-one-carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG766665496 or 766665496. Listed at 6 retailers as of October 25, 2026, with prices from £180 to £708, a £527 spread on the same certified stone. MOH London lists it at £708. 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

0.89
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle34.2°
Pavilion angle42.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG766665496
Dimensions6.18 × 6.49 × 3.91 mm
L/W Ratio1.05
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.18 mm6.49 mm0.89 ctE / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG766665496
Side View
Table 63.0%Crown 34.2°Girdle: MED-STKPavilion 42.7°Culet: NoneDepth 60.2%

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: Oct 29
Current: £708 GBP|Low: £180 GBP|High: £715 GBP|Avg: £350 GBP|-0.8%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
October 29, 2026
Retailer 6£180 GBP
Retailer 2£266 GBP
Retailer 4£273 GBP
Retailer 5£321 GBP
Retailer 3£386 GBP
MOH London£708 GBP

24 data points across 6 retailers

6 retailers£180 GBP to £708 GBP

A
Cheapest Retailer
-
£180 GBP
$240 USD
B+
Retailer 2
-
£266 GBP
View
B+
Retailer 3
-
£273 GBP
$364 USD
View
B
Retailer 4
-
£386 GBP
$514 USD
View
B
Retailer 5
-
£527 GBP
$702 USD
View
Most Expensive
B
MOH London
LG766665496 · Oct 25
£708 GBP
View
5 more retailers have this diamond
Prices start from £180 GBPSave up to £527 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
0.89ct Heart
£180 GBP