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Round|Lab Grown|IGI

6.56ct F SI2 Round Lab Grown Diamond

EX • F/SI2 • IGI LG627416551

Shape and cutting style on the report: Round brilliant

Certificate IGI LG627416551

Diamond specifications and retailer prices

From $782 USD
As of October 30, 2026
Save $4,238 USD (84%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $5,020 USD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 6.56ct lab-grown round diamond

This 6.56ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG627416551 or 627416551. Listed at 14 retailers as of October 30, 2026, with prices from $782 to $5,020, a $4,238 spread on the same certified stone. Rare Carat lists it at $5,020. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

6.56
Carat
F
Color
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.9°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG627416551
Dimensions12.03 × 12.07 × 7.24 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
12.03 mm12.07 mm6.56 ctF / SI2
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG627416551
Side View
Table 61.0%Crown 33.9°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 60.1%

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 30
Current: $5,020 USD|Low: $479 USD|High: $5,298 USD|Avg: $1,952 USD|-5.2%
Rare Carat
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
November 2, 2026
Retailer 10$596 USD
Retailer 13$668 USD
Retailer 11$782 USD
Retailer 4$1,095 USD
Retailer 3$1,152 USD
Retailer 2$1,245 USD
Retailer 6$1,275 USD
Retailer 9$1,656 USD
Retailer 8$1,673 USD
Retailer 5$1,944 USD
Retailer 14$2,640 USD
Retailer 7$3,209 USD
Retailer 12$3,840 USD
Rare Carat$5,020 USD

30 data points across 14 retailers

14 retailers$782 USD to $5,020 USD

Retailer 1
-
$596 USD
Price last confirmed 7 days ago
Retailer 2
-
$668 USD
View
Price last confirmed 9 days ago
A
Retailer 3
-
$782 USD
View
Final sale: no returns
B+
Retailer 4
-
$1,095 USD
View
A
Retailer 5
-
$1,152 USD
View
A
Retailer 6
-
$1,245 USD
€1,186 EUR
View
B+
Retailer 7
-
$1,656 USD
A$2,548 AUD
View
B+
Retailer 8
-
$1,673 USD
View
B+
Retailer 9
-
$1,944 USD
View
B
Retailer 10
-
$2,640 USD
View
B
Retailer 11
-
$3,209 USD
£2,527 GBP
View
B
Retailer 12
-
$3,840 USD
View
Retailer 13
-
$3,840 USD
View
Price last confirmed 18 days ago
Most Expensive
B
Rare Carat
L25550 · Nov 1
$5,020 USD
View
13 more retailers have this diamond
Prices start from $782 USDSave up to $4,238 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
6.56ct Round
$782 USD