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Heart|Lab Grown|IGI

1.71ct D FL Heart Lab Grown Diamond

ID • D/FL • IGI LG749573318

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG749573318

Diamond specifications and retailer prices

From $725 USD
As of October 30, 2026
Save $3,335 USD (82%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,060 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.71ct lab-grown heart diamond

This 1.71ct lab-grown heart 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 LG749573318 or 749573318. Listed at 20 retailers as of October 30, 2026, with prices from $725 to $4,060, a $3,335 spread on the same certified stone. Brilliant Earth lists it at $4,060. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.71
Carat
D
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG749573318
Dimensions7.50 × 8.43 × 4.66 mm
L/W Ratio1.12
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
7.50 mm8.43 mm1.71 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG749573318
Side View
Table 57.0%Crown 33.6°Girdle: MED-THKPavilion 37°Culet: NoneDepth 55.3%

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: $4,060 USD|Low: $725 USD|High: $5,480 USD|Avg: $2,032 USD|-25.9%
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
Retailer 17
Retailer 18
Retailer 19
October 30, 2026
Retailer 7$725 USD
Retailer 5$789 USD
Retailer 17$841 USD
Retailer 10$860 USD
Retailer 14$936 USD
Retailer 18$1,020 USD
Retailer 6$1,088 USD
Retailer 2$1,346 USD
Retailer 15$1,364 USD
Retailer 4$1,406 USD
Retailer 13$1,546 USD
Retailer 8$1,888 USD
Retailer 19$2,364 USD
Retailer 12$2,778 USD
Retailer 16$2,899 USD
Retailer 3$3,306 USD
Retailer 9$3,350 USD
Retailer 11$3,578 USD
Brilliant Earth$4,060 USD

28 data points across 19 retailers

20 retailers$725 USD to $4,060 USD

A
Cheapest Retailer
-
$725 USD
A
Retailer 2
-
$789 USD
View
A
Retailer 3
-
$841 USD
View
Retailer 4
-
$860 USD
View
Price last confirmed 13 days ago
A
Retailer 5
-
$936 USD
View
Final sale: no returns
A
Retailer 6
-
$1,020 USD
View
A
Retailer 7
-
$1,088 USD
View
A
Retailer 8
-
$1,346 USD
£1,060 GBP
View
B+
Retailer 9
-
$1,364 USD
View
B+
Retailer 10
-
$1,406 USD
View
B+
Retailer 11
-
$1,546 USD
ZAR 24,969 ZAR
View
B+
Retailer 12
-
$1,888 USD
View
B+
Retailer 13
-
$2,364 USD
View
B
Retailer 14
-
$2,778 USD
View
B+
Retailer 15
-
$2,868 USD
View
B+
Retailer 16
-
$2,899 USD
View
B
Retailer 17
-
$3,306 USD
£2,603 GBP
View
B
Retailer 18
-
$3,350 USD
SGD 4,527 SGD
View
B
Retailer 19
-
$3,578 USD
View
Most Expensive
B
Brilliant Earth
21417283A · Oct 30
$4,060 USD
View
19 more retailers have this diamond
Prices start from $725 USDSave up to $3,335 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
1.71ct Heart
$725 USD