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Round|Lab Grown|IGI

3.66ct E IF Round Lab Grown Diamond

ID • E/IF • IGI LG622472997

Certificate IGI LG622472997

Diamond specifications and retailer prices

From $1,653 USD
Save $8,857 USD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $10,510 USD at Brilliant Earth
View at Brilliant Earth

About this 3.66ct lab-grown round diamond

This 3.66ct 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 LG622472997 or 622472997. Listed at 18 retailers, with prices from $1,653 to $10,510 at Brilliant Earth, a $8,857 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

3.66
Carat
E
Color
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG622472997
Dimensions9.90 × 9.95 × 6.01 mm
L/W Ratio1.01
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
9.90 mm9.95 mm3.66 ctE / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG622472997
Side View
Table 60.0%Crown 33.6°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.5%

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: $10,510 USD|Low: $1,180 USD|High: $10,690 USD|Avg: $4,783 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
October 1, 2026
Retailer 3$1,653 USD
Retailer 11$1,885 USD
Retailer 18$2,026 USD
Retailer 5$2,540 USD
Retailer 12$2,681 USD
Retailer 2$2,699 USD
Retailer 10$3,109 USD
Retailer 15$4,274 USD
Retailer 14$4,311 USD
Retailer 6$4,988 USD
Retailer 7$5,209 USD
Retailer 4$5,363 USD
Retailer 16$5,442 USD
Retailer 13$5,465 USD
Retailer 8$6,659 USD
Retailer 17$9,467 USD
Retailer 9$10,160 USD
Brilliant Earth$10,510 USD

39 data points across 18 retailers

18 retailers$1,653 USD to $10,510 USD

A
Cheapest Retailer
-
$1,653 USD
A
Retailer 2
-
$1,885 USD
View
A
Retailer 3
-
$2,026 USD
View
A
Retailer 4
-
$2,540 USD
View
A
Retailer 5
-
$2,687 USD
£2,116 GBP
View
A
Retailer 6
-
$2,699 USD
View
A
Retailer 7
-
$3,109 USD
View
B+
Retailer 8
-
$4,274 USD
A$6,576 AUD
View
B+
Retailer 9
-
$4,311 USD
ZAR 69,639 ZAR
View
B+
Retailer 10
-
$4,988 USD
View
B+
Retailer 11
-
$5,209 USD
View
B+
Retailer 12
-
$5,363 USD
View
B+
Retailer 13
-
$5,442 USD
View
B+
Retailer 14
-
$5,465 USD
£4,303 GBP
View
B
Retailer 15
-
$6,659 USD
View
B
Retailer 16
-
$9,467 USD
View
B
Retailer 17
-
$10,160 USD
View
Most Expensive
B
Brilliant Earth
18396645Y · Oct 1
$10,510 USD
View
17 more retailers have this diamond
Prices start from $1,653 USDSave up to $8,857 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
3.66ct Round
$1,653 USD