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Oval|Lab Grown|IGI

1.51ct H SI2 Oval Lab Grown Diamond

ID • H/SI2 • IGI LG436046292

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436046292

Diamond specifications and retailer prices

From $1,196 AUD
$840 USD
As of October 29, 2026
Save $5,250 AUD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $6,445 AUD at MOH London · As of October 27, 2026
View at MOH London

About this 1.51ct lab-grown oval diamond

This 1.51ct lab-grown oval sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436046292 or 436046292. Listed at 10 retailers as of October 27, 2026, with prices from $1,196 to $6,445, a $5,250 spread on the same certified stone. MOH London lists it at $6,445. 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

1.51
Carat
H
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.8°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436046292
Dimensions8.83 × 6.55 × 4.18 mm
L/W Ratio1.35
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.83 mm6.55 mm1.51 ctH / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG436046292
Side View
Table 57.5%Crown 35.8°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 63.8%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: $6,445 AUD|Low: $1,196 AUD|High: $6,523 AUD|Avg: $3,003 AUD|+0.1%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 25, 2026
Retailer 4$1,196 AUD
Retailer 2$1,727 AUD
Retailer 8$1,879 AUD
Retailer 9$1,933 AUD
Retailer 5$2,003 AUD
Retailer 11$2,830 AUD
Retailer 6$3,176 AUD
Retailer 7$3,755 AUD
Retailer 10$3,838 AUD
Retailer 3$4,484 AUD
MOH London$6,445 AUD

14 data points across 11 retailers

10 retailers$1,196 AUD to $6,445 AUD

A
Cheapest Retailer
-
$1,196 AUD
$840 USD
A
Retailer 2
-
$1,727 AUD
$1,213 USD
View
B+
Retailer 3
-
$1,879 AUD
$1,320 USD
View
B+
Retailer 4
-
$1,933 AUD
$1,358 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,003 AUD
$1,407 USD
View
Retailer 6
-
$2,003 AUD
$1,407 USD
View
Price last confirmed 18 days ago
B
Retailer 7
-
$3,176 AUD
$2,231 USD
View
B
Retailer 8
-
$3,755 AUD
$2,638 USD
View
B
Retailer 9
-
$3,838 AUD
$2,696 USD
View
Most Expensive
B
MOH London
LG436046292 · Oct 27
$6,445 AUD
£3,565 GBP
View
9 more retailers have this diamond
Prices start from $1,196 AUDSave up to $5,250 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
1.51ct Oval
$1,196 AUD