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Round|Lab Grown|IGI

1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG696546946

Certificate IGI LG696546946

Diamond specifications and retailer prices

From $1,421 AUD
As of November 6, 2026
Save $507 AUD (26%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,928 AUD at Kay Jewelers · As of November 5, 2026
View at Kay Jewelers

About this 1.55ct lab-grown round diamond

This 1.55ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG696546946 or 696546946. Listed at 4 retailers as of November 5, 2026, with prices from $1,421 to $1,928, a $507 spread on the same certified stone. Kay Jewelers lists it at $1,928. 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

1.55
Carat
D
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG696546946
Dimensions7.37 × 7.40 × 4.59 mm
L/W Ratio1.00
Top View
7.37 mm7.40 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG696546946
Side View
Table 56.0%CrownGirdle: MediumPavilionCulet: NoneDepth 62.1%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 6
Current: $1,928 AUD|Low: $1,421 AUD|High: $2,757 AUD|Avg: $1,842 AUD
Kay Jewelers
Retailer 2
Retailer 3
Retailer 4
November 6, 2026
Retailer 2$1,421 AUD
Retailer 3$1,421 AUD
Kay Jewelers$1,928 AUD
Retailer 4$1,928 AUD

2 data points across 4 retailers

4 retailers$1,421 AUD to $1,928 AUD

B
Cheapest Retailer
-
$1,421 AUD
B
Retailer 2
-
$1,421 AUD
View
B
Retailer 3
-
$1,928 AUD
View
Most Expensive
B
Kay Jewelers
254739582 · Nov 5
$1,928 AUD
$1,350 USD
View
3 more retailers have this diamond
Prices start from $1,421 AUDSave up to $507 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.

B
1.55ct Round
$1,421 AUD