CaratHunter
Plans
Round|Lab Grown|IGI

1.50ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG447099890

Shape and cutting style on the report: Round brilliant

Certificate IGI LG447099890

Diamond specifications and retailer prices

From $934 USD
As of November 5, 2026
Save $2,730 USD (75%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $3,664 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.5ct lab-grown round diamond

This 1.5ct lab-grown round sits in the one-and-a-half to two carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG447099890 or 447099890. Listed at 9 retailers as of November 5, 2026, with prices from $934 to $3,664, a $2,730 spread on the same certified stone. MOH London lists it at $3,664. 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

1.50
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle31.5°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG447099890
Dimensions7.50 × 7.53 × 4.40 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
undefined
Top View
7.50 mm7.53 mm1.50 ctK / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG447099890
Side View
Table 57.0%Crown 31.5°Girdle: THN-MEDPavilion 40.2°Culet: NoneDepth 58.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,664 USD|Low: $897 USD|High: $3,724 USD|Avg: $1,844 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
November 5, 2026
Retailer 4$934 USD
Retailer 5$1,083 USD
Retailer 7$1,083 USD
Retailer 2$1,260 USD
Retailer 8$1,596 USD
Retailer 6$1,735 USD
Retailer 3$2,410 USD
MOH London$3,664 USD

20 data points across 8 retailers

9 retailers$934 USD to $3,664 USD

A
Cheapest Retailer
-
$934 USD
A
Retailer 2
-
$1,016 USD
View
Retailer 3
-
$1,083 USD
View
Price last confirmed 25 days ago
B+
Retailer 4
-
$1,083 USD
View
B+
Retailer 5
-
$1,260 USD
View
B
Retailer 6
-
$1,735 USD
View
B
Retailer 7
-
$2,410 USD
View
B
Retailer 8
-
$3,046 USD
View
Most Expensive
B
MOH London
LG447099890 · Nov 5
$3,664 USD
£2,885 GBP
View
8 more retailers have this diamond
Prices start from $934 USDSave up to $2,730 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
1.50ct Round
$934 USD