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Round|Lab Grown|IGI

3.72ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG591311620

Certificate IGI LG591311620

Diamond specifications and retailer prices

From $1,680 USD
Save $9,400 USD (85%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $11,080 USD at Brilliant Earth
View at Brilliant Earth

About this 3.72ct lab-grown round diamond

This 3.72ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG591311620 or 591311620. Listed at 19 retailers, with prices from $1,680 to $11,080 at Brilliant Earth, a $9,400 spread on the same certified stone. 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

3.72
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG591311620
Dimensions10.05 × 10.02 × 6.03 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.05 mm10.02 mm3.72 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG591311620
Side View
Table 59.0%Crown 33.3°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.1%

Caratlytics Score

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

Price History

Last verified: Oct 1
Current: $11,080 USD|Low: $1,199 USD|High: $11,170 USD|Avg: $4,899 USD|-0.8%
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
Retailer 19
October 1, 2026
Retailer 3$1,680 USD
Retailer 12$1,910 USD
Retailer 19$2,054 USD
Retailer 7$2,618 USD
Retailer 13$2,725 USD
Retailer 2$2,742 USD
Retailer 11$3,159 USD
Retailer 16$4,343 USD
Retailer 15$4,380 USD
Retailer 6$5,069 USD
Retailer 8$5,284 USD
Retailer 4$5,451 USD
Retailer 17$5,526 USD
Retailer 14$5,552 USD
Retailer 5$5,850 USD
Retailer 9$6,762 USD
Retailer 18$9,776 USD
Retailer 10$10,320 USD
Brilliant Earth$11,080 USD

39 data points across 19 retailers

19 retailers$1,680 USD to $11,080 USD

A
Cheapest Retailer
-
$1,680 USD
A
Retailer 2
-
$1,910 USD
View
A
Retailer 3
-
$2,054 USD
View
A
Retailer 4
-
$2,618 USD
View
A
Retailer 5
-
$2,731 USD
£2,150 GBP
View
A
Retailer 6
-
$2,742 USD
View
A
Retailer 7
-
$3,159 USD
View
B+
Retailer 8
-
$4,343 USD
A$6,682 AUD
View
B+
Retailer 9
-
$4,380 USD
ZAR 70,761 ZAR
View
B+
Retailer 10
-
$5,069 USD
View
B+
Retailer 11
-
$5,284 USD
View
B+
Retailer 12
-
$5,451 USD
View
B+
Retailer 13
-
$5,526 USD
View
B+
Retailer 14
-
$5,552 USD
£4,372 GBP
View
B+
Retailer 15
-
$5,850 USD
View
B+
Retailer 16
-
$6,762 USD
View
B
Retailer 17
-
$9,776 USD
View
B
Retailer 18
-
$10,320 USD
View
Most Expensive
B
Brilliant Earth
18396420Y · Oct 1
$11,080 USD
View
18 more retailers have this diamond
Prices start from $1,680 USDSave up to $9,400 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.

A
3.72ct Round
$1,680 USD