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Oval|Lab Grown|IGI

1.51ct H SI1 Oval Lab Grown Diamond

ID • H/SI1 • IGI LG436072868

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436072868

Diamond specifications and retailer prices

From $1,324 AUD
$930 USD
As of October 31, 2026
Save $5,472 AUD (81%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $6,796 AUD at MOH London · As of November 1, 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 SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436072868 or 436072868. Listed at 12 retailers as of October 31, 2026, with prices from $1,324 to $6,796, a $5,472 spread on the same certified stone. MOH London lists it at $6,796. 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
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436072868
Dimensions8.78 × 6.54 × 4.07 mm
L/W Ratio1.34
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.78 mm6.54 mm1.51 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436072868
Side View
Table 60.0%Crown 35.3°Girdle: STK-THKPavilion 40.7°Culet: NoneDepth 62.2%

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: $6,796 AUD|Low: $1,324 AUD|High: $6,887 AUD|Avg: $3,352 AUD|-1.1%
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
November 1, 2026
Retailer 9$1,324 AUD
Retailer 8$2,051 AUD
Retailer 13$2,232 AUD
Retailer 14$2,296 AUD
Retailer 10$2,380 AUD
Retailer 15$2,380 AUD
Retailer 7$2,424 AUD
Retailer 4$2,627 AUD
Retailer 5$3,236 AUD
Retailer 2$3,355 AUD
Retailer 11$3,754 AUD
Retailer 3$4,319 AUD
Retailer 12$4,460 AUD
MOH London$6,796 AUD
Retailer 6$6,812 AUD

38 data points across 15 retailers

12 retailers$1,324 AUD to $6,796 AUD

A
Cheapest Retailer
-
$1,324 AUD
$930 USD
B+
Retailer 2
-
$2,051 AUD
$1,441 USD
View
B+
Retailer 3
-
$2,232 AUD
$1,568 USD
View
B+
Retailer 4
-
$2,296 AUD
$1,613 USD
View
Final sale: no returns
Retailer 5
-
$2,380 AUD
$1,672 USD
View
Price last confirmed 20 days ago
B+
Retailer 6
-
$2,380 AUD
$1,672 USD
View
B
Retailer 7
-
$2,627 AUD
$1,845 USD
View
B
Retailer 8
-
$3,355 AUD
£1,856 GBP
View
B
Retailer 9
-
$3,754 AUD
$2,637 USD
View
B
Retailer 10
-
$4,319 AUD
$3,034 USD
View
B
Retailer 11
-
$4,460 AUD
$3,133 USD
View
Most Expensive
B
MOH London
LG436072868 · Nov 1
$6,796 AUD
£3,759 GBP
View
11 more retailers have this diamond
Prices start from $1,324 AUDSave up to $5,472 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
$1,324 AUD