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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 $1,424 AUD
$1,000 USD
As of October 30, 2026
Save $5,535 AUD (80%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,959 AUD 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 $1,424 to $6,959, a $5,535 spread on the same certified stone. MOH London lists it at $6,959. 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 30
Current: $6,959 AUD|Low: $1,424 AUD|High: $7,015 AUD|Avg: $3,424 AUD|-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 2$1,424 AUD
Retailer 7$2,090 AUD
Retailer 10$2,273 AUD
Retailer 12$2,340 AUD
Retailer 8$2,423 AUD
Retailer 13$2,423 AUD
Retailer 6$3,037 AUD
Retailer 4$3,304 AUD
Retailer 9$3,821 AUD
Retailer 3$4,399 AUD
Retailer 11$4,543 AUD
Retailer 5$5,425 AUD
MOH London$6,959 AUD

26 data points across 13 retailers

11 retailers$1,424 AUD to $6,959 AUD

A
Cheapest Retailer
-
$1,424 AUD
$1,000 USD
B+
Retailer 2
-
$2,090 AUD
$1,468 USD
View
B+
Retailer 3
-
$2,273 AUD
$1,597 USD
View
B+
Retailer 4
-
$2,340 AUD
$1,644 USD
View
Final sale: no returns
Retailer 5
-
$2,423 AUD
$1,702 USD
View
Price last confirmed 17 days ago
B+
Retailer 6
-
$2,423 AUD
$1,702 USD
View
B+
Retailer 7
-
$3,037 AUD
£1,680 GBP
View
B
Retailer 8
-
$3,821 AUD
$2,684 USD
View
B
Retailer 9
-
$4,399 AUD
$3,090 USD
View
B
Retailer 10
-
$4,543 AUD
$3,191 USD
View
Most Expensive
B
MOH London
LG436074564 · Oct 29
$6,959 AUD
£3,849 GBP
View
10 more retailers have this diamond
Prices start from $1,424 AUDSave up to $5,535 AUD

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
$1,424 AUD