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Oval|Lab Grown|IGI

1.51ct K SI1 Oval Lab Grown Diamond

ID • K/SI1 • IGI LG436044497

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG436044497

Diamond specifications and retailer prices

From $1,335 AUD
As of November 5, 2026
Save $3,017 AUD (69%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $5,277 AUD at MOH London · As of October 29, 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 K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG436044497 or 436044497. Listed at 10 retailers as of November 5, 2026, with a 226% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
K
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle35.4°
Pavilion angle41.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG436044497
Dimensions8.65 × 6.52 × 4.16 mm
L/W Ratio1.33
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.65 mm6.52 mm1.51 ctK / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG436044497
Side View
Table 55.0%Crown 35.4°Girdle: UNDPavilion 41.3°Culet: NoneDepth 63.8%

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: Nov 5
Current: $5,277 AUD|Low: $1,281 AUD|High: $5,312 AUD|Avg: $2,807 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
November 6, 2026
Retailer 6$1,335 AUD
Retailer 10$1,452 AUD
Retailer 7$1,549 AUD
Retailer 4$1,805 AUD
Retailer 2$2,151 AUD
Retailer 11$2,288 AUD
Retailer 8$2,480 AUD
Retailer 5$3,443 AUD
Retailer 9$4,352 AUD
Retailer 3$4,432 AUD
MOH London$5,277 AUD

29 data points across 11 retailers

10 retailers$1,335 AUD to $4,352 AUD

A
Cheapest Retailer
-
$1,335 AUD
A
Retailer 2
-
$1,452 AUD
View
Retailer 3
-
$1,549 AUD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,549 AUD
View
B+
Retailer 5
-
$1,805 AUD
View
B+
Retailer 6
-
$2,151 AUD
View
B+
Retailer 7
-
$2,480 AUD
View
B
Retailer 8
-
$3,443 AUD
View
B
Retailer 9
-
$4,352 AUD
View
Most Expensive
MOH London
LG436044497 · Oct 29
$5,277 AUD
£2,855 GBP
View
Price last confirmed 8 days ago
9 more retailers have this diamond
Prices start from $1,335 AUDSave up to $3,017 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
$1,335 AUD