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Round|Lab Grown|IGI

1.53ct D SI1 Round Lab Grown Diamond

ID • D/SI1 • IGI LG494162070

Shape and cutting style on the report: Round brilliant

Certificate IGI LG494162070

Diamond specifications and retailer prices

From $276 USD
As of November 4, 2026
Save $1,334 USD (83%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,610 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.53ct lab-grown round diamond

This 1.53ct 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 LG494162070 or 494162070. Listed at 15 retailers as of October 31, 2026, with prices from $276 to $1,610, a $1,334 spread on the same certified stone. Brilliant Earth lists it at $1,610. 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

1.53
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG494162070
Dimensions7.42 × 7.38 × 4.53 mm
L/W Ratio1.01
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
7.42 mm7.38 mm1.53 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG494162070
Side View
Table 56.5%Crown 35.2°Girdle: MED-STKPavilion 40.4°Culet: NoneDepth 61.2%

Caratlytics Score

How it works →
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 4
Current: $1,610 USD|Low: $276 USD|High: $1,650 USD|Avg: $698 USD|-2.4%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 3$276 USD
Retailer 10$307 USD
Retailer 11$412 USD
Retailer 9$465 USD
Retailer 5$552 USD
Retailer 2$576 USD
Retailer 6$596 USD
Retailer 7$795 USD
Retailer 8$990 USD
Retailer 4$1,226 USD
Brilliant Earth$1,610 USD

43 data points across 11 retailers

15 retailers$276 USD to $1,610 USD

Retailer 1
-
$247 USD
Price last confirmed 45 days ago
A
Retailer 2
-
$276 USD
View
Final sale: no returns
Retailer 3
-
$287 USD
View
Price last confirmed 45 days ago
Retailer 4
-
$303 USD
View
Price last confirmed 42 days ago
B+
Retailer 5
-
$412 USD
View
A
Retailer 6
-
$465 USD
View
B+
Retailer 7
-
$552 USD
View
B+
Retailer 8
-
$576 USD
View
B+
Retailer 9
-
$596 USD
View
B+
Retailer 10
-
$795 USD
View
Retailer 11
-
$986 USD
View
Price last confirmed 46 days ago
B
Retailer 12
-
$990 USD
View
B
Retailer 13
-
$1,038 USD
View
B
Retailer 14
-
$1,226 USD
View
Most Expensive
B
Brilliant Earth
16145642A · Oct 31
$1,610 USD
View
14 more retailers have this diamond
Prices start from $276 USDSave up to $1,334 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
1.53ct Round
$276 USD