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Round|Lab Grown|IGI

1.80ct I SI2 Round Lab Grown Diamond

EX • I/SI2 • IGI LG436074564

Shape and cutting style on the report: Round brilliant

Certificate IGI LG436074564

Diamond specifications and retailer prices

From £976 GBP
$1,300 USD
As of October 29, 2026
Save £2,695 GBP (73%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: £3,671 GBP at MOH London · As of October 29, 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 I colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436074564 or 436074564. Listed at 11 retailers as of October 29, 2026, with prices from £976 to £3,671, a £2,695 spread on the same certified stone. MOH London lists it at £3,671. 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
I
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436074564
Dimensions7.73 × 7.76 × 4.82 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
7.73 mm7.76 mm1.80 ctI / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436074564
Side View
Table 57.5%Crown 36.4°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 62.3%

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: £3,671 GBP|Low: £882 GBP|High: £3,700 GBP|Avg: £1,807 GBP|-0.5%
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
October 30, 2026
Retailer 7£976 GBP
Retailer 6£1,102 GBP
Retailer 10£1,199 GBP
Retailer 12£1,235 GBP
Retailer 8£1,278 GBP
Retailer 13£1,278 GBP
Retailer 2£1,602 GBP
Retailer 4£1,743 GBP
Retailer 9£2,015 GBP
Retailer 3£2,320 GBP
Retailer 11£2,396 GBP
Retailer 5£2,862 GBP
MOH London£3,671 GBP

26 data points across 13 retailers

11 retailers£976 GBP to £3,671 GBP

A
Cheapest Retailer
-
£976 GBP
$1,300 USD
A
Retailer 2
-
£1,102 GBP
$1,468 USD
View
B+
Retailer 3
-
£1,199 GBP
$1,597 USD
View
B+
Retailer 4
-
£1,235 GBP
$1,644 USD
View
Final sale: no returns
Retailer 5
-
£1,278 GBP
$1,702 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
£1,278 GBP
$1,702 USD
View
B+
Retailer 7
-
£1,602 GBP
View
B
Retailer 8
-
£2,015 GBP
$2,684 USD
View
B
Retailer 9
-
£2,320 GBP
$3,090 USD
View
B
Retailer 10
-
£2,396 GBP
$3,191 USD
View
Most Expensive
B
MOH London
LG436074564 · Oct 29
£3,671 GBP
View
10 more retailers have this diamond
Prices start from £976 GBPSave up to £2,695 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
£976 GBP