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Oval|Lab Grown|IGI

0.55ct D SI1 Oval Lab Grown Diamond

EX • D/SI1 • IGI LG778617268

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG778617268

Diamond specifications and retailer prices

From $186 AUD
As of November 5, 2026
Save $1,007 AUD (84%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $2,241 AUD at Do Amore Diamonds · As of November 6, 2026
View at Do Amore Diamonds

About this 0.55ct lab-grown oval diamond

This 0.55ct lab-grown oval sits in the half to three-quarter carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG778617268 or 778617268. Listed at 13 retailers as of November 4, 2026, with a 541% 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

0.55
Carat
D
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG778617268
Dimensions6.71 × 4.64 × 2.83 mm
L/W Ratio1.45
Girdle conditionFaceted
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
6.71 mm4.64 mm0.55 ctD / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG778617268
Side View
Table 61.0%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.0%

Caratlytics Score

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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: Nov 5
Current: $2,241 AUD|Low: $183 AUD|High: $2,241 AUD|Avg: $727 AUD
Do Amore Diamonds
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
November 4, 2026
Retailer 7$186 AUD
Retailer 13$220 AUD
Retailer 3$236 AUD
Retailer 10$284 AUD
Retailer 5$343 AUD
Retailer 4$348 AUD
Retailer 9$437 AUD
Retailer 8$611 AUD
Retailer 11$675 AUD
Retailer 12$745 AUD
Retailer 14$837 AUD
Retailer 6$1,191 AUD
Retailer 2$1,193 AUD
Do Amore Diamonds$2,241 AUD

31 data points across 14 retailers

13 retailers$186 AUD to $1,193 AUD

A
Cheapest Retailer
-
$186 AUD
Retailer 2
-
$191 AUD
View
Price last confirmed 19 days ago
Retailer 3
-
$220 AUD
View
Price last confirmed 17 days ago
Retailer 4
-
$236 AUD
View
Price last confirmed 18 days ago
A
Retailer 5
-
$284 AUD
View
A
Retailer 6
-
$348 AUD
View
A
Retailer 7
-
$437 AUD
View
B+
Retailer 8
-
$611 AUD
View
B+
Retailer 9
-
$675 AUD
View
B
Retailer 10
-
$745 AUD
View
Retailer 11
-
$837 AUD
View
Price last confirmed 19 days ago
B
Retailer 12
-
$1,193 AUD
View
Most Expensive
Do Amore Diamonds
32-LG778617268 · Nov 6
$2,241 AUD
$1,540 USD
View
Price under review
12 more retailers have this diamond
Prices start from $186 AUDSave up to $1,007 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
0.55ct Oval
$186 AUD