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Round|Lab Grown|IGI

1.73ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG813651518

Shape and cutting style on the report: Round brilliant

Certificate IGI LG813651518

Diamond specifications and retailer prices

From $567 USD
As of November 1, 2026
Save $5,183 USD (90%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $5,750 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.73ct lab-grown round diamond

This 1.73ct lab-grown round sits in the one-and-a-half to two carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG813651518 or 813651518. Listed at 21 retailers as of October 31, 2026, with prices from $567 to $5,750, a $5,183 spread on the same certified stone. Brilliant Earth lists it at $5,750. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.73
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG813651518
Dimensions7.66 × 7.71 × 4.74 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
7.66 mm7.71 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG813651518
Side View
Table 55.0%Crown 34°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.6%

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: $5,750 USD|Low: $544 USD|High: $5,750 USD|Avg: $1,754 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
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Retailer 15
Retailer 16
Retailer 17
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Retailer 19
Retailer 20
November 1, 2026
Retailer 20$567 USD
Retailer 12$634 USD
Retailer 4$635 USD
Retailer 5$703 USD
Retailer 16$835 USD
Retailer 7$930 USD
Retailer 8$1,012 USD
Retailer 14$1,131 USD
Retailer 13$1,213 USD
Retailer 15$1,334 USD
Retailer 9$1,404 USD
Retailer 19$1,745 USD
Retailer 18$1,840 USD
Retailer 6$2,042 USD
Retailer 11$2,349 USD
Retailer 3$2,624 USD
Retailer 17$2,955 USD
Retailer 2$3,059 USD
Retailer 10$5,040 USD
Brilliant Earth$5,750 USD

39 data points across 20 retailers

21 retailers$567 USD to $5,750 USD

A
Cheapest Retailer
-
$567 USD
A
Retailer 2
-
$634 USD
View
Final sale: no returns
A
Retailer 3
-
$635 USD
View
A
Retailer 4
-
$703 USD
View
Retailer 5
-
$703 USD
View
Price last confirmed 16 days ago
A
Retailer 6
-
$835 USD
View
A
Retailer 7
-
$930 USD
View
A
Retailer 8
-
$1,012 USD
View
A
Retailer 9
-
$1,131 USD
€1,077 EUR
View
B+
Retailer 10
-
$1,213 USD
£955 GBP
View
B+
Retailer 11
-
$1,334 USD
ZAR 21,552 ZAR
View
B+
Retailer 12
-
$1,404 USD
View
B+
Retailer 13
-
$1,745 USD
View
B+
Retailer 14
-
$1,840 USD
View
B+
Retailer 15
-
$2,042 USD
View
B
Retailer 16
-
$2,349 USD
View
B
Retailer 17
-
$2,624 USD
View
Retailer 18
-
$2,955 USD
View
Price last confirmed 14 days ago
B
Retailer 19
-
$3,059 USD
£2,409 GBP
View
B
Retailer 20
-
$5,040 USD
View
Most Expensive
B
Brilliant Earth
21803400A · Oct 31
$5,750 USD
View
20 more retailers have this diamond
Prices start from $567 USDSave up to $5,183 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
1.73ct Round
$567 USD