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Round|Lab Grown|IGI

6.57ct E FL Round Lab Grown Diamond

ID • E/FL • IGI LG790606735

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790606735

Diamond specifications and retailer prices

From $9,475 USD
As of October 29, 2026
Save $49,645 USD (84%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $59,120 USD at Do Amore Diamonds · As of October 31, 2026
View at Do Amore Diamonds

About this 6.57ct lab-grown round diamond

This 6.57ct lab-grown round sits in the over five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790606735 or 790606735. Listed at 12 retailers as of October 29, 2026, with prices from $9,475 to $59,120, a $49,645 spread on the same certified stone. Do Amore Diamonds lists it at $59,120. 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

6.57
Carat
E
Color
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790606735
Dimensions12.22 × 12.15 × 7.28 mm
L/W Ratio1.01
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
12.22 mm12.15 mm6.57 ctE / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790606735
Side View
Table 59.0%Crown 33°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.8%

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 29
Current: $59,120 USD|Low: $9,475 USD|High: $61,998 USD|Avg: $27,387 USD|+2.7%
Do Amore Diamonds
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
October 30, 2026
Retailer 13$9,475 USD
Retailer 10$9,854 USD
Retailer 14$11,369 USD
Retailer 15$11,660 USD
Retailer 12$11,737 USD
Retailer 9$11,740 USD
Retailer 11$12,031 USD
Retailer 8$19,158 USD
Retailer 2$20,700 USD
Retailer 7$25,555 USD
Retailer 3$27,909 USD
Retailer 4$29,796 USD
Retailer 5$45,289 USD
Do Amore Diamonds$59,120 USD
Retailer 6$61,998 USD

23 data points across 15 retailers

12 retailers$9,475 USD to $59,120 USD

A
Cheapest Retailer
-
$9,475 USD
A
Retailer 2
-
$9,854 USD
View
A
Retailer 3
-
$11,369 USD
View
Retailer 4
-
$11,660 USD
View
Price last confirmed 10 days ago
A
Retailer 5
-
$11,737 USD
View
A
Retailer 6
-
$11,740 USD
View
A
Retailer 7
-
$12,031 USD
View
A
Retailer 8
-
$19,158 USD
£15,085 GBP
View
B+
Retailer 9
-
$20,700 USD
View
B+
Retailer 10
-
$27,909 USD
View
Retailer 11
-
$32,330 USD
View
Price last confirmed 40 days ago
Most Expensive
B
Do Amore Diamonds
27-E58002C46 · Oct 31
$59,120 USD
View
11 more retailers have this diamond
Prices start from $9,475 USDSave up to $49,645 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
6.57ct Round
$9,475 USD