Round|Lab Grown|IGI

1.55ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG660459214

Certificate IGI LG660459214

Diamond specifications and retailer prices

From $995 USD
As of November 5, 2026
Save $935 USD (48%) vs most expensive(unlock to see where)
4 retailers carry this diamond
Most expensive: $1,930 USD at Jared · As of November 4, 2026
View at Jared

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 LG660459214 or 660459214. Listed at 4 retailers as of November 4, 2026, with prices from $995 to $1,930, a $935 spread on the same certified stone. Jared lists it at $1,930. 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
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
CertificateIGI LG660459214
Dimensions7.47 × 7.51 × 4.52 mm
L/W Ratio1.01
Top View
7.47 mm7.51 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG660459214
Side View
Table 58.0%CrownGirdle: MED-STKPavilionCulet: NoneDepth 60.4%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Nov 5
Current: $1,930 USD|Low: $995 USD|High: $1,930 USD|Avg: $1,572 USD
Jared
Retailer 2
Retailer 3
Retailer 4
September 26, 2026
Retailer 2$995 USD
Retailer 3$1,350 USD
Retailer 4$1,350 USD
Jared$1,930 USD

10 data points across 4 retailers

4 retailers$995 USD to $1,930 USD

B
Cheapest Retailer
-
$995 USD
B
Retailer 2
-
$1,350 USD
View
B
Retailer 3
-
$1,350 USD
View
Most Expensive
B
Jared
154541442 · Nov 4
$1,930 USD
View
3 more retailers have this diamond
Prices start from $995 USDSave up to $935 USD

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
$995 USD