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Oval|Lab Grown|IGI

1.80ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG440012892

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG440012892

Diamond specifications and retailer prices

From $1,594 AUD
$1,120 USD
As of October 31, 2026
Save $6,525 AUD (80%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $8,120 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.8ct lab-grown oval diamond

This 1.8ct lab-grown oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440012892 or 440012892. Listed at 12 retailers as of October 29, 2026, with prices from $1,594 to $8,120, a $6,525 spread on the same certified stone. MOH London lists it at $8,120. 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
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle31.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440012892
Dimensions10.01 × 6.86 × 4.06 mm
L/W Ratio1.46
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
10.01 mm6.86 mm1.80 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG440012892
Side View
Table 62.0%Crown 31.5°Girdle: STK-THKPavilion 40.3°Culet: NoneDepth 59.2%

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 31
Current: $8,120 AUD|Low: $1,594 AUD|High: $8,185 AUD|Avg: $4,037 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
Retailer 14
Retailer 15
October 30, 2026
Retailer 2$1,594 AUD
Retailer 10$2,437 AUD
Retailer 14$2,652 AUD
Retailer 15$2,729 AUD
Retailer 3$2,827 AUD
Retailer 11$2,827 AUD
Retailer 7$2,888 AUD
Retailer 4$3,068 AUD
Retailer 5$3,785 AUD
Retailer 8$3,999 AUD
Retailer 12$4,440 AUD
Retailer 9$4,876 AUD
Retailer 13$5,300 AUD
Retailer 6$8,096 AUD
MOH London$8,120 AUD

24 data points across 15 retailers

12 retailers$1,594 AUD to $8,120 AUD

A
Cheapest Retailer
-
$1,594 AUD
$1,120 USD
B+
Retailer 2
-
$2,437 AUD
$1,712 USD
View
B+
Retailer 3
-
$2,652 AUD
$1,863 USD
View
B+
Retailer 4
-
$2,729 AUD
$1,917 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,827 AUD
$1,986 USD
View
Retailer 6
-
$2,827 AUD
$1,986 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$3,068 AUD
$2,155 USD
View
B
Retailer 8
-
$3,999 AUD
£2,212 GBP
View
B
Retailer 9
-
$4,440 AUD
$3,119 USD
View
B
Retailer 10
-
$4,876 AUD
$3,425 USD
View
B
Retailer 11
-
$5,300 AUD
$3,723 USD
View
Most Expensive
B
MOH London
LG440012892 · Oct 29
$8,120 AUD
£4,491 GBP
View
11 more retailers have this diamond
Prices start from $1,594 AUDSave up to $6,525 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 Oval
$1,594 AUD