CaratHunter
Plans
Oval|Lab Grown|IGI

1.51ct D SI2 Oval Lab Grown Diamond

ID • D/SI2 • IGI LG488132236

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG488132236

Diamond specifications and retailer prices

From $480 AUD
As of November 1, 2026
Save $1,223 AUD (72%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $1,703 AUD at Brilliant Earth · As of November 6, 2026
View at Brilliant Earth

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 D colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG488132236 or 488132236. Listed at 16 retailers as of November 1, 2026, with prices from $480 to $1,703, a $1,223 spread on the same certified stone. Brilliant Earth lists it at $1,703. 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
D
Colour
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle41.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG488132236
Dimensions8.92 × 6.36 × 4.15 mm
L/W Ratio1.40
Girdle conditionFaceted
Culet sizePointed
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
8.92 mm6.36 mm1.51 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG488132236
Side View
Table 59.5%Crown 35.3°Girdle: MED-STKPavilion 41.6°Culet: NoneDepth 65.3%

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: Nov 1
Current: $1,703 AUD|Low: $346 AUD|High: $2,431 AUD|Avg: $960 AUD|-29.9%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
November 6, 2026
Retailer 10$346 AUD
Retailer 6$480 AUD
Retailer 2$600 AUD
Retailer 5$626 AUD
Retailer 3$627 AUD
Retailer 9$745 AUD
Retailer 4$1,125 AUD
Retailer 8$1,361 AUD
Retailer 7$1,502 AUD
Brilliant Earth$1,703 AUD

43 data points across 10 retailers

16 retailers$480 AUD to $1,703 AUD

Retailer 1
-
$268 AUD
Price last confirmed 36 days ago
Retailer 2
-
$290 AUD
View
Price last confirmed 44 days ago
Retailer 3
-
$336 AUD
View
Price last confirmed 42 days ago
Retailer 4
-
$346 AUD
View
Price last confirmed 35 days ago
Retailer 5
-
$355 AUD
View
Price last confirmed 42 days ago
B+
Retailer 6
-
$480 AUD
View
A
Retailer 7
-
$600 AUD
View
A
Retailer 8
-
$626 AUD
View
A
Retailer 9
-
$627 AUD
View
B+
Retailer 10
-
$745 AUD
View
B+
Retailer 11
-
$926 AUD
View
Retailer 12
-
$1,112 AUD
View
Price last confirmed 37 days ago
B+
Retailer 13
-
$1,125 AUD
View
B
Retailer 14
-
$1,361 AUD
View
Retailer 15
-
$1,502 AUD
View
Price last confirmed 8 days ago
Most Expensive
B
Brilliant Earth
8639601A · Nov 6
$1,703 AUD
$1,170 USD
View
15 more retailers have this diamond
Prices start from $480 AUDSave up to $1,223 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
$480 AUD