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Round|Lab Grown|IGI

3.70ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG790606731

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790606731

Diamond specifications and retailer prices

From $1,558 USD
As of October 29, 2026
Save $13,892 USD (90%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $15,450 USD at Brilliant Earth · As of October 29, 2026
View at Brilliant Earth

About this 3.7ct lab-grown round diamond

This 3.7ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790606731 or 790606731. Listed at 14 retailers as of October 29, 2026, with prices from $1,558 to $15,450, a $13,892 spread on the same certified stone. Brilliant Earth lists it at $15,450. 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
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790606731
Dimensions9.96 × 9.92 × 6.10 mm
L/W Ratio1.00
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
9.96 mm9.92 mm3.70 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790606731
Side View
Table 57.0%Crown 34°Girdle: MED-STKPavilion 40.8°Culet: NoneDepth 61.3%

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 29
Current: $15,450 USD|Low: $1,113 USD|High: $18,340 USD|Avg: $5,678 USD|-15.8%
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
October 29, 2026
Retailer 5$1,558 USD
Retailer 2$1,594 USD
Retailer 17$1,734 USD
Retailer 12$2,091 USD
Retailer 3$3,313 USD
Retailer 15$3,315 USD
Retailer 4$3,554 USD
Retailer 16$3,825 USD
Retailer 18$4,459 USD
Retailer 6$4,695 USD
Retailer 8$5,135 USD
Retailer 10$5,323 USD
Retailer 11$5,859 USD
Retailer 14$6,115 USD
Retailer 7$8,601 USD
Retailer 9$9,881 USD
Retailer 13$10,960 USD
Brilliant Earth$15,450 USD

29 data points across 18 retailers

14 retailers$1,558 USD to $15,450 USD

A
Cheapest Retailer
-
$1,558 USD
Final sale: no returns
A
Retailer 2
-
$1,594 USD
View
A
Retailer 3
-
$1,734 USD
View
A
Retailer 4
-
$2,091 USD
View
A
Retailer 5
-
$3,313 USD
View
A
Retailer 6
-
$3,315 USD
View
A
Retailer 7
-
$3,554 USD
View
B+
Retailer 8
-
$3,825 USD
View
B+
Retailer 9
-
$4,459 USD
View
B+
Retailer 10
-
$5,859 USD
£4,613 GBP
View
B+
Retailer 11
-
$6,115 USD
View
Retailer 12
-
$6,675 USD
View
Price last confirmed 22 days ago
B
Retailer 13
-
$10,960 USD
View
Most Expensive
B
Brilliant Earth
21413588Y · Oct 29
$15,450 USD
View
13 more retailers have this diamond
Prices start from $1,558 USDSave up to $13,892 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 Round
$1,558 USD