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Round|Lab Grown|IGI

1.80ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG779641877

Shape and cutting style on the report: Round brilliant

Certificate IGI LG779641877

Diamond specifications and retailer prices

From £551 GBP
$738 USD
As of October 29, 2026
Save £3,173 GBP (85%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: £3,724 GBP at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

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 E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG779641877 or 779641877. Listed at 24 retailers as of October 29, 2026, with prices from £551 to £3,724, a £3,173 spread on the same certified stone. Brilliant Earth lists it at £3,724. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.80
Carat
E
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG779641877
Dimensions7.77 × 7.82 × 4.79 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
7.77 mm7.82 mm1.80 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG779641877
Side View
Table 58.0%Crown 34.3°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.4%

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: £3,724 GBP|Low: £529 GBP|High: £3,724 GBP|Avg: £1,315 GBP|+0.2%
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
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 19£551 GBP
Retailer 8£599 GBP
Retailer 10£616 GBP
Retailer 4£639 GBP
Retailer 11£639 GBP
Retailer 15£772 GBP
Retailer 7£825 GBP
Retailer 13£1,017 GBP
Retailer 2£1,022 GBP
Retailer 5£1,034 GBP
Retailer 14£1,174 GBP
Retailer 18£1,574 GBP
Retailer 16£1,590 GBP
Retailer 9£1,796 GBP
Retailer 17£2,064 GBP
Retailer 3£2,073 GBP
Retailer 6£2,148 GBP
Retailer 12£2,522 GBP
Brilliant Earth£3,724 GBP

45 data points across 19 retailers

24 retailers£551 GBP to £3,724 GBP

A
Cheapest Retailer
-
£551 GBP
$738 USD
A
Retailer 2
-
£599 GBP
$803 USD
View
A
Retailer 3
-
£616 GBP
$826 USD
View
Final sale: no returns
Retailer 4
-
£639 GBP
$856 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
£639 GBP
$856 USD
View
A
Retailer 6
-
£745 GBP
HK$7,800 HKD
View
A
Retailer 7
-
£772 GBP
$1,035 USD
View
A
Retailer 8
-
£825 GBP
$1,106 USD
View
B+
Retailer 9
-
£1,000 GBP
$1,340 USD
View
B+
Retailer 10
-
£1,017 GBP
€1,298 EUR
View
B+
Retailer 11
-
£1,022 GBP
View
B+
Retailer 12
-
£1,034 GBP
$1,386 USD
View
B+
Retailer 13
-
£1,174 GBP
ZAR 25,422 ZAR
View
B+
Retailer 14
-
£1,574 GBP
$2,109 USD
View
Retailer 15
-
£1,590 GBP
A$3,277 AUD
View
Price last confirmed 9 days ago
B
Retailer 16
-
£1,796 GBP
$2,407 USD
View
B
Retailer 17
-
£2,064 GBP
$2,765 USD
View
B
Retailer 18
-
£2,073 GBP
$2,778 USD
View
B
Retailer 19
-
£2,148 GBP
SGD 3,890 SGD
View
B
Retailer 20
-
£2,160 GBP
$2,894 USD
View
B
Retailer 21
-
£2,172 GBP
$2,910 USD
View
B
Retailer 22
-
£2,203 GBP
$2,951 USD
View
B
Retailer 23
-
£2,522 GBP
View
Most Expensive
B
Brilliant Earth
19067109A · Oct 29
£3,724 GBP
$4,990 USD
View
23 more retailers have this diamond
Prices start from £551 GBPSave up to £3,173 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
£551 GBP