Round|Lab Grown|IGI

1.30ct K SI1 Round Lab Grown Diamond

EX • K/SI1 • IGI LG492134147

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492134147

Diamond specifications and retailer prices

From $519 USD
As of November 5, 2026
Save $2,158 USD (81%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $2,677 USD at MOH London · As of November 5, 2026
View at MOH London

About this 1.3ct lab-grown round diamond

This 1.3ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded K colour (faint-tinted) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492134147 or 492134147. Listed at 10 retailers as of November 5, 2026, with prices from $519 to $2,677, a $2,158 spread on the same certified stone. MOH London lists it at $2,677. 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

1.30
Carat
K
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle32.7°
Pavilion angle40.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492134147
Dimensions7.14 × 7.17 × 4.12 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizeNone
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
7.14 mm7.17 mm1.30 ctK / SI1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492134147
Side View
Table 63.0%Crown 32.7°Girdle: MED-STKPavilion 40.2°Culet: NoneDepth 57.5%

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: Nov 5
Current: $2,677 USD|Low: $498 USD|High: $2,717 USD|Avg: $1,196 USD|-0.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 5, 2026
Retailer 5$519 USD
Retailer 6$643 USD
Retailer 8$643 USD
Retailer 3$780 USD
Retailer 2$889 USD
Retailer 7$997 USD
Retailer 4$1,660 USD
Retailer 9$1,722 USD
MOH London$2,677 USD

38 data points across 9 retailers

10 retailers$519 USD to $2,677 USD

A
Cheapest Retailer
-
$519 USD
B+
Retailer 2
-
$581 USD
View
B+
Retailer 3
-
$643 USD
View
Retailer 4
-
$643 USD
View
Price last confirmed 21 days ago
B+
Retailer 5
-
$780 USD
View
B+
Retailer 6
-
$889 USD
View
B
Retailer 7
-
$997 USD
View
B
Retailer 8
-
$1,660 USD
View
B
Retailer 9
-
$1,691 USD
View
Most Expensive
B
MOH London
LG492134147 · Nov 5
$2,677 USD
£2,108 GBP
View
9 more retailers have this diamond
Prices start from $519 USDSave up to $2,158 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
1.30ct Round
$519 USD