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1.73ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG790627189

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790627189

Diamond specifications and retailer prices

From $451 USD
As of November 1, 2026
Save $2,729 USD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $3,180 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 LG790627189 or 790627189. Listed at 23 retailers as of October 31, 2026, with prices from $451 to $3,180, a $2,729 spread on the same certified stone. Brilliant Earth lists it at $3,180. 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 angle33.9°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790627189
Dimensions7.69 × 7.72 × 4.75 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
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
7.69 mm7.72 mm1.73 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790627189
Side View
Table 57.0%Crown 33.9°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A+
Exceptional
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: $3,180 USD|Low: $451 USD|High: $5,790 USD|Avg: $1,494 USD|-45.1%
Brilliant Earth
Retailer 2
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Retailer 7
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Retailer 11
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Retailer 21
November 1, 2026
Retailer 11$451 USD
Retailer 7$504 USD
Retailer 6$505 USD
Retailer 5$559 USD
Retailer 14$656 USD
Retailer 19$788 USD
Retailer 13$790 USD
Retailer 16$856 USD
Retailer 10$880 USD
Retailer 2$915 USD
Retailer 18$961 USD
Retailer 21$1,268 USD
Retailer 8$1,298 USD
Retailer 15$1,341 USD
Retailer 3$1,798 USD
Retailer 9$1,830 USD
Retailer 20$1,995 USD
Retailer 17$2,066 USD
Retailer 4$2,093 USD
Retailer 12$2,980 USD
Brilliant Earth$3,180 USD

31 data points across 21 retailers

23 retailers$451 USD to $3,180 USD

A+
Cheapest Retailer
-
$451 USD
A
Retailer 2
-
$504 USD
View
Final sale: no returns
A
Retailer 3
-
$505 USD
View
A
Retailer 4
-
$559 USD
View
Retailer 5
-
$656 USD
View
Price last confirmed 21 days ago
A
Retailer 6
-
$788 USD
View
A
Retailer 7
-
$790 USD
View
A
Retailer 8
-
$856 USD
€815 EUR
View
A
Retailer 9
-
$880 USD
View
A
Retailer 10
-
$915 USD
£721 GBP
View
A
Retailer 11
-
$961 USD
ZAR 15,528 ZAR
View
B+
Retailer 12
-
$1,268 USD
View
B+
Retailer 13
-
$1,298 USD
View
B+
Retailer 14
-
$1,341 USD
View
B+
Retailer 15
-
$1,694 USD
View
B+
Retailer 16
-
$1,798 USD
View
B+
Retailer 17
-
$1,830 USD
View
B+
Retailer 18
-
$1,962 USD
View
B+
Retailer 19
-
$1,995 USD
View
B+
Retailer 20
-
$2,066 USD
£1,627 GBP
View
B+
Retailer 21
-
$2,093 USD
View
Retailer 22
-
$2,980 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
18981788A · Oct 31
$3,180 USD
View
22 more retailers have this diamond
Prices start from $451 USDSave up to $2,729 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
$451 USD