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Round|Lab Grown|IGI

1.72ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG818661942

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818661942

Diamond specifications and retailer prices

From $577 USD
As of October 30, 2026
Save $3,273 USD (85%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,850 USD at Brilliant Earth · As of October 31, 2026
View at Brilliant Earth

About this 1.72ct lab-grown round diamond

This 1.72ct lab-grown round sits in the one-and-a-half to two carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG818661942 or 818661942. Listed at 20 retailers as of October 30, 2026, with prices from $577 to $3,850, a $3,273 spread on the same certified stone. Brilliant Earth lists it at $3,850. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.72
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.1°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661942
Dimensions7.68 × 7.73 × 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
7.68 mm7.73 mm1.72 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661942
Side View
Table 57.0%Crown 35.1°Girdle: THN-MEDPavilion 40.7°Culet: NoneDepth 61.5%

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: Oct 30
Current: $3,850 USD|Low: $577 USD|High: $5,220 USD|Avg: $1,752 USD|-26.2%
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
Retailer 16
November 1, 2026
Retailer 5$577 USD
Retailer 10$900 USD
Retailer 16$900 USD
Retailer 2$961 USD
Retailer 12$978 USD
Retailer 9$988 USD
Retailer 15$1,100 USD
Retailer 4$1,171 USD
Retailer 11$1,480 USD
Retailer 6$1,497 USD
Retailer 7$2,081 USD
Retailer 3$2,202 USD
Retailer 14$2,238 USD
Retailer 13$2,685 USD
Retailer 8$2,960 USD
Brilliant Earth$3,850 USD

27 data points across 16 retailers

20 retailers$577 USD to $3,850 USD

Retailer 1
-
$539 USD
Price last confirmed 21 days ago
A
Retailer 2
-
$577 USD
View
Final sale: no returns
Retailer 3
-
$669 USD
View
Price last confirmed 21 days ago
Retailer 4
-
$669 USD
View
Price last confirmed 29 days ago
A
Retailer 5
-
$900 USD
View
A
Retailer 6
-
$900 USD
View
A
Retailer 7
-
$961 USD
£757 GBP
View
A
Retailer 8
-
$978 USD
€931 EUR
View
A
Retailer 9
-
$988 USD
£778 GBP
View
A
Retailer 10
-
$1,100 USD
ZAR 17,763 ZAR
View
B+
Retailer 11
-
$1,171 USD
View
B+
Retailer 12
-
$1,480 USD
View
B+
Retailer 13
-
$1,497 USD
View
Retailer 14
-
$1,759 USD
View
Price last confirmed 24 days ago
B+
Retailer 15
-
$2,081 USD
View
B
Retailer 16
-
$2,202 USD
View
B
Retailer 17
-
$2,238 USD
View
B
Retailer 18
-
$2,685 USD
£2,114 GBP
View
Retailer 19
-
$2,960 USD
View
Price last confirmed 14 days ago
Most Expensive
B
Brilliant Earth
21580883A · Oct 31
$3,850 USD
View
19 more retailers have this diamond
Prices start from $577 USDSave up to $3,273 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
1.72ct Round
$577 USD