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Round|Lab Grown|IGI

1.13ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG487198010

Shape and cutting style on the report: Round brilliant

Certificate IGI LG487198010

Diamond specifications and retailer prices

From $570 USD
As of November 2, 2026
Save $889 USD (61%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $2,147 USD at Friendly Diamonds · As of November 2, 2026
View at Friendly Diamonds

About this 1.13ct lab-grown round diamond

This 1.13ct lab-grown round sits in the classic one-carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG487198010 or 487198010. Listed at 12 retailers as of November 1, 2026, with a 156% 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

1.13
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.7°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG487198010
Dimensions6.70 × 6.67 × 4.10 mm
L/W Ratio1.00
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
6.70 mm6.67 mm1.13 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG487198010
Side View
Table 57.5%Crown 35.7°Girdle: MediumPavilion 40.4°Culet: NoneDepth 61.4%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $2,147 USD|Low: $570 USD|High: $3,430 USD|Avg: $1,408 USD
Friendly Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
November 2, 2026
Retailer 4$570 USD
Retailer 5$778 USD
Retailer 8$871 USD
Retailer 6$903 USD
Retailer 9$1,080 USD
Retailer 2$1,379 USD
Retailer 7$1,459 USD
Friendly Diamonds$2,147 USD
Retailer 3$3,385 USD

40 data points across 9 retailers

12 retailers$570 USD to $1,459 USD

B+
Cheapest Retailer
-
$570 USD
B
Retailer 2
-
$778 USD
View
B
Retailer 3
-
$847 USD
View
B
Retailer 4
-
$871 USD
View
Final sale: no returns
Retailer 5
-
$903 USD
View
Price last confirmed 21 days ago
B
Retailer 6
-
$903 USD
View
B
Retailer 7
-
$1,080 USD
View
B
Retailer 8
-
$1,379 USD
£1,086 GBP
View
B
Retailer 9
-
$1,459 USD
View
Most Expensive
Friendly Diamonds
1595022 · Nov 2
$2,147 USD
View
Price under review
9 more retailers have this diamond
Prices start from $570 USDSave up to $889 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+
1.13ct Round
$570 USD