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Heart|Lab Grown|IGI

3.70ct G VS1 Heart Lab Grown Diamond

EX • G/VS1 • IGI LG643421144

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG643421144

Diamond specifications and retailer prices

From $691 USD
As of October 25, 2026
Save $1,556 USD (69%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $3,005 USD at MOH London · As of October 25, 2026
View at MOH London

About this 3.7ct lab-grown heart diamond

This 3.7ct lab-grown heart sits in the three to five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG643421144 or 643421144. Listed at 16 retailers as of October 25, 2026, with a 225% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

3.70
Carat
G
Color
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
Crown angle36.4°
Pavilion angle39.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643421144
Dimensions9.22 × 10.88 × 6.05 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
9.22 mm10.88 mm3.70 ctG / VS1
OriginLab Grown
CutExcellent
PolishVery Good
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643421144
Side View
Table 58.0%Crown 36.4°Girdle: STK-THKPavilion 39.8°Culet: NoneDepth 55.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 25
Current: $3,005 USD|Low: $444 USD|High: $3,037 USD|Avg: $1,407 USD|+0.1%
MOH London
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
October 26, 2026
Retailer 13$557 USD
Retailer 5$623 USD
Retailer 3$624 USD
Retailer 14$691 USD
Retailer 9$800 USD
Retailer 12$928 USD
Retailer 4$994 USD
Retailer 2$1,065 USD
Retailer 6$1,355 USD
Retailer 10$1,487 USD
Retailer 11$1,784 USD
Retailer 16$1,818 USD
Retailer 7$2,241 USD
Retailer 15$2,247 USD
Retailer 8$2,334 USD
MOH London$3,005 USD

38 data points across 16 retailers

16 retailers$691 USD to $2,247 USD

Retailer 1
-
$557 USD
Price last confirmed 9 days ago
Retailer 2
-
$624 USD
View
Price last confirmed 7 days ago
A
Retailer 3
-
$691 USD
View
Retailer 4
-
$691 USD
View
Price last confirmed 16 days ago
Retailer 5
-
$800 USD
View
Price last confirmed 5 days ago
Retailer 6
-
$928 USD
View
Price last confirmed 9 days ago
A
Retailer 7
-
$994 USD
View
A
Retailer 8
-
$1,065 USD
£838 GBP
View
A
Retailer 9
-
$1,355 USD
View
Retailer 10
-
$1,487 USD
ZAR 24,025 ZAR
View
Price last confirmed 8 days ago
B+
Retailer 11
-
$1,784 USD
View
Retailer 12
-
$1,818 USD
View
Price last confirmed 7 days ago
B
Retailer 13
-
$2,241 USD
View
B
Retailer 14
-
$2,247 USD
View
Retailer 15
-
$2,334 USD
View
Price last confirmed 7 days ago
Most Expensive
MOH London
LG643421144 · Oct 25
$3,005 USD
£2,366 GBP
View
Price last confirmed 7 days ago
15 more retailers have this diamond
Prices start from $691 USDSave up to $1,556 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
3.70ct Heart
$691 USD