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Round|Lab Grown|IGI

1.80ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG651482936

Shape and cutting style on the report: Round brilliant

Certificate IGI LG651482936

Diamond specifications and retailer prices

From $218 USD
As of November 1, 2026
Save $1,132 USD (84%) vs most expensive(unlock to see where)
15 retailers carry this diamond
Most expensive: $1,350 USD at Brilliant Earth · As of November 1, 2026
View at Brilliant Earth

About this 1.8ct lab-grown round diamond

This 1.8ct lab-grown round sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG651482936 or 651482936. Listed at 15 retailers as of November 1, 2026, with prices from $218 to $1,350, a $1,132 spread on the same certified stone. Brilliant Earth lists it at $1,350. 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

1.80
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG651482936
Dimensions7.80 × 7.74 × 4.80 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.80 mm7.74 mm1.80 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG651482936
Side View
Table 59.0%Crown 35.1°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

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 1
Current: $1,350 USD|Low: $210 USD|High: $1,350 USD|Avg: $508 USD
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
Retailer 15
November 2, 2026
Retailer 8$218 USD
Retailer 7$244 USD
Retailer 14$253 USD
Retailer 9$271 USD
Retailer 5$274 USD
Retailer 3$453 USD
Retailer 15$464 USD
Retailer 2$497 USD
Retailer 13$536 USD
Retailer 12$577 USD
Retailer 10$870 USD
Retailer 11$873 USD
Retailer 6$910 USD
Retailer 4$1,100 USD
Brilliant Earth$1,350 USD

41 data points across 15 retailers

15 retailers$218 USD to $1,350 USD

A
Cheapest Retailer
-
$218 USD
A
Retailer 2
-
$244 USD
View
Final sale: no returns
A
Retailer 3
-
$253 USD
View
A
Retailer 4
-
$271 USD
View
Retailer 5
-
$274 USD
View
Price last confirmed 8 days ago
A
Retailer 6
-
$453 USD
€431 EUR
View
B+
Retailer 7
-
$464 USD
View
A
Retailer 8
-
$497 USD
£391 GBP
View
A
Retailer 9
-
$536 USD
View
A
Retailer 10
-
$577 USD
View
B+
Retailer 11
-
$870 USD
View
B+
Retailer 12
-
$873 USD
View
B
Retailer 13
-
$910 USD
View
B
Retailer 14
-
$1,100 USD
£866 GBP
View
Most Expensive
B
Brilliant Earth
11867105A · Nov 1
$1,350 USD
View
14 more retailers have this diamond
Prices start from $218 USDSave up to $1,132 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
1.80ct Round
$218 USD