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Heart|Lab Grown|IGI

1.78ct F VS1 Heart Lab Grown Diamond

ID • F/VS1 • IGI LG707510587

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG707510587

Diamond specifications and retailer prices

From $317 USD
As of October 31, 2026
Save $1,361 USD (81%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,760 USD at Brilliant Earth · As of October 12, 2026
View at Brilliant Earth

About this 1.78ct lab-grown heart diamond

This 1.78ct lab-grown heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG707510587 or 707510587. Listed at 18 retailers as of October 31, 2026, with a 429% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.78
Carat
F
Color
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle30.9°
Pavilion angle38.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707510587
Dimensions8.82 × 7.46 × 4.83 mm
L/W Ratio1.18
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.82 mm7.46 mm1.78 ctF / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG707510587
Side View
Table 62.0%Crown 30.9°Girdle: MED-STKPavilion 38.7°Culet: NoneDepth 54.8%

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 31
Current: $1,640 USD|Low: $272 USD|High: $1,780 USD|Avg: $758 USD|-7.9%
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
October 24, 2026
Retailer 17$283 USD
Retailer 5$317 USD
Retailer 14$329 USD
Retailer 6$351 USD
Retailer 7$351 USD
Retailer 10$410 USD
Retailer 15$535 USD
Retailer 4$579 USD
Retailer 12$598 USD
Retailer 11$609 USD
Retailer 9$698 USD
Retailer 13$899 USD
Retailer 8$1,087 USD
Retailer 3$1,129 USD
Retailer 16$1,425 USD
Brilliant Earth$1,640 USD
Retailer 2$1,678 USD

28 data points across 17 retailers

18 retailers$317 USD to $1,678 USD

Retailer 1
-
$283 USD
Price last confirmed 11 days ago
A
Retailer 2
-
$317 USD
View
Final sale: no returns
Retailer 3
-
$329 USD
View
Price last confirmed 12 days ago
Retailer 4
-
$351 USD
View
Price last confirmed 17 days ago
Retailer 5
-
$351 USD
View
Price last confirmed 11 days ago
Retailer 6
-
$535 USD
View
Price last confirmed 10 days ago
Retailer 7
-
$579 USD
View
Price last confirmed 12 days ago
Retailer 8
-
$598 USD
ZAR 9,661 ZAR
View
Price last confirmed 14 days ago
Retailer 9
-
$609 USD
£480 GBP
View
Price last confirmed 11 days ago
Retailer 10
-
$698 USD
View
Price last confirmed 12 days ago
Retailer 11
-
$899 USD
View
Price last confirmed 11 days ago
Retailer 12
-
$1,087 USD
A$1,672 AUD
View
Price last confirmed 32 days ago
Retailer 13
-
$1,129 USD
View
Price last confirmed 11 days ago
Retailer 14
-
$1,351 USD
View
Price last confirmed 11 days ago
Retailer 15
-
$1,425 USD
£1,122 GBP
View
Price last confirmed 22 days ago
Retailer 16
-
$1,640 USD
View
Price last confirmed 12 days ago
B
Retailer 17
-
$1,678 USD
View
Most Expensive
Brilliant Earth
18181421A · Oct 12
$1,760 USD
View
Price last confirmed 21 days ago
17 more retailers have this diamond
Prices start from $317 USDSave up to $1,361 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
1.78ct Heart
$317 USD