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Heart|Lab Grown|IGI

1.71ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG728526423

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG728526423

Diamond specifications and retailer prices

From $227 USD
As of October 23, 2026
Save $1,363 USD (86%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $1,590 USD at Brilliant Earth · As of October 28, 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 VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG728526423 or 728526423. Listed at 23 retailers as of October 23, 2026, with prices from $227 to $1,590, a $1,363 spread on the same certified stone. Brilliant Earth lists it at $1,590. 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
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle39.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG728526423
Dimensions8.33 × 7.79 × 4.69 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.33 mm7.79 mm1.71 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG728526423
Side View
Table 62.0%Crown 34.3°Girdle: MED-STKPavilion 39.1°Culet: NoneDepth 56.3%

Caratlytics Score

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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 23
Current: $1,590 USD|Low: $227 USD|High: $1,680 USD|Avg: $733 USD|-5.4%
Brilliant Earth
Retailer 2
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Retailer 22
October 28, 2026
Retailer 22$227 USD
Retailer 12$253 USD
Retailer 20$263 USD
Retailer 3$281 USD
Retailer 13$314 USD
Retailer 17$453 USD
Retailer 19$476 USD
Retailer 5$477 USD
Retailer 16$522 USD
Retailer 10$542 USD
Retailer 8$641 USD
Retailer 2$657 USD
Retailer 4$738 USD
Retailer 21$904 USD
Retailer 14$913 USD
Retailer 11$956 USD
Retailer 18$1,129 USD
Retailer 7$1,141 USD
Retailer 9$1,145 USD
Retailer 15$1,201 USD
Retailer 6$1,279 USD
Brilliant Earth$1,590 USD

26 data points across 22 retailers

23 retailers$227 USD to $1,590 USD

A
Cheapest Retailer
-
$227 USD
A
Retailer 2
-
$253 USD
View
Final sale: no returns
A
Retailer 3
-
$263 USD
View
A
Retailer 4
-
$281 USD
View
A
Retailer 5
-
$314 USD
£247 GBP
View
A
Retailer 6
-
$320 USD
HK$2,500 HKD
View
A
Retailer 7
-
$453 USD
€431 EUR
View
A
Retailer 8
-
$476 USD
ZAR 7,682 ZAR
View
B+
Retailer 9
-
$477 USD
View
A
Retailer 10
-
$522 USD
£411 GBP
View
A
Retailer 11
-
$542 USD
View
B+
Retailer 12
-
$641 USD
View
B+
Retailer 13
-
$657 USD
A$1,010 AUD
View
B+
Retailer 14
-
$738 USD
View
B+
Retailer 15
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$904 USD
View
B+
Retailer 16
-
$913 USD
SGD 1,234 SGD
View
B+
Retailer 17
-
$956 USD
View
B+
Retailer 18
-
$1,129 USD
£889 GBP
View
B
Retailer 19
-
$1,141 USD
View
B+
Retailer 20
-
$1,145 USD
View
B
Retailer 21
-
$1,201 USD
A$1,848 AUD
View
Price last confirmed 21 days ago
B
Retailer 22
-
$1,279 USD
View
Most Expensive
B
Brilliant Earth
15575121A · Oct 28
$1,590 USD
View
22 more retailers have this diamond
Prices start from $227 USDSave up to $1,363 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
$227 USD