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Princess|Lab Grown|IGI

1.55ct D SI1 Princess Lab Grown Diamond

ID • D/SI1 • IGI LG497176310

Shape and cutting style on the report: Princess cut

Certificate IGI LG497176310

Diamond specifications and retailer prices

From $266 USD
As of October 30, 2026
Save $2,314 USD (90%) vs most expensive(unlock to see where)
17 retailers carry this diamond
Most expensive: $2,580 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 1.55ct lab-grown princess diamond

This 1.55ct lab-grown princess 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 LG497176310 or 497176310. Listed at 17 retailers as of October 30, 2026, with prices from $266 to $2,580, a $2,314 spread on the same certified stone. Do Amore Diamonds lists it at $2,580. 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
Crown angle43.7°
Pavilion angle38.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG497176310
Dimensions6.28 × 6.26 × 4.49 mm
L/W Ratio1.00
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
6.28 mm6.26 mm1.55 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG497176310
Side View
Table 68.5%Crown 43.7°Girdle: Slightly ThickPavilion 38.2°Culet: NoneDepth 71.7%

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: Oct 30
Current: $2,580 USD|Low: $228 USD|High: $2,580 USD|Avg: $820 USD|+13.2%
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
Retailer 15
Retailer 16
October 31, 2026
Retailer 8$266 USD
Retailer 15$290 USD
Retailer 5$337 USD
Retailer 10$360 USD
Retailer 13$360 USD
Retailer 14$421 USD
Retailer 16$514 USD
Retailer 3$515 USD
Retailer 2$704 USD
Retailer 7$966 USD
Retailer 11$1,106 USD
Retailer 12$1,277 USD
Retailer 4$1,440 USD
Retailer 6$1,477 USD
Retailer 9$1,601 USD
Do Amore Diamonds$2,580 USD

44 data points across 16 retailers

17 retailers$266 USD to $2,580 USD

A
Cheapest Retailer
-
$266 USD
Final sale: no returns
A
Retailer 2
-
$290 USD
View
A
Retailer 3
-
$337 USD
View
A
Retailer 4
-
$360 USD
View
A
Retailer 5
-
$360 USD
View
A
Retailer 6
-
$421 USD
View
B+
Retailer 7
-
$514 USD
View
B+
Retailer 8
-
$515 USD
View
B
Retailer 9
-
$704 USD
£554 GBP
View
B
Retailer 10
-
$966 USD
View
B
Retailer 11
-
$1,063 USD
CA$1,477 CAD
View
B
Retailer 12
-
$1,106 USD
View
B
Retailer 13
-
$1,277 USD
View
B
Retailer 14
-
$1,440 USD
View
B
Retailer 15
-
$1,477 USD
SGD 1,996 SGD
View
B
Retailer 16
-
$1,601 USD
£1,261 GBP
View
Most Expensive
B
Do Amore Diamonds
27-F3FD1F777 · Oct 31
$2,580 USD
View
16 more retailers have this diamond
Prices start from $266 USDSave up to $2,314 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.

A
1.55ct Princess
$266 USD