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Round|Lab Grown|IGI

1.30ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG490193858

Shape and cutting style on the report: Round brilliant

Certificate IGI LG490193858

Diamond specifications and retailer prices

From $990 USD
As of November 5, 2026
Save $1,485 USD (60%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $3,885 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 F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG490193858 or 490193858. Listed at 13 retailers as of November 4, 2026, with a 150% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.3°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG490193858
Dimensions6.95 × 6.90 × 4.35 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
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
6.95 mm6.90 mm1.30 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG490193858
Side View
Table 54.5%Crown 36.3°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 62.8%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 5
Current: $3,885 USD|Low: $951 USD|High: $3,942 USD|Avg: $1,788 USD|-1.3%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 6, 2026
Retailer 5$990 USD
Retailer 6$1,010 USD
Retailer 9$1,109 USD
Retailer 7$1,149 USD
Retailer 10$1,149 USD
Retailer 11$1,325 USD
Retailer 2$1,748 USD
Retailer 8$1,835 USD
Retailer 4$2,475 USD
Retailer 3$3,386 USD
MOH London$3,885 USD

41 data points across 11 retailers

13 retailers$990 USD to $2,475 USD

B
Cheapest Retailer
-
$990 USD
B
Retailer 2
-
$1,010 USD
View
B
Retailer 3
-
$1,077 USD
View
B
Retailer 4
-
$1,109 USD
View
Final sale: no returns
Retailer 5
-
$1,149 USD
View
Price last confirmed 25 days ago
B
Retailer 6
-
$1,149 USD
View
B
Retailer 7
-
$1,325 USD
View
B
Retailer 8
-
$1,748 USD
View
B
Retailer 9
-
$1,835 USD
View
B
Retailer 10
-
$2,153 USD
View
B
Retailer 11
-
$2,475 USD
View
Retailer 12
-
$3,386 USD
View
Price under review
Most Expensive
MOH London
LG490193858 · Nov 5
$3,885 USD
£3,059 GBP
View
Price under review
12 more retailers have this diamond
Prices start from $990 USDSave up to $1,485 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
1.30ct Round
$990 USD