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Round|Lab Grown|IGI

9.51ct F SI1 Round Lab Grown Diamond

ID • F/SI1 • IGI LG610311858

Shape and cutting style on the report: Round brilliant

Certificate IGI LG610311858

Diamond specifications and retailer prices

From $1,985 USD
As of November 2, 2026
Save $6,625 USD (77%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $8,610 USD at Brilliant Earth · As of November 2, 2026
View at Brilliant Earth

About this 9.51ct lab-grown round diamond

This 9.51ct lab-grown round sits in the over five carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG610311858 or 610311858. Listed at 13 retailers as of November 2, 2026, with prices from $1,985 to $8,610, a $6,625 spread on the same certified stone. Brilliant Earth lists it at $8,610. 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

9.51
Carat
F
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG610311858
Dimensions13.70 × 13.63 × 8.27 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Top View
13.70 mm13.63 mm9.51 ctF / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG610311858
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 40.5°Culet: NoneDepth 60.5%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $8,610 USD|Low: $1,534 USD|High: $10,410 USD|Avg: $3,512 USD|-17.3%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 3$1,534 USD
Retailer 6$1,985 USD
Retailer 9$2,169 USD
Retailer 11$2,352 USD
Retailer 4$2,559 USD
Retailer 2$2,620 USD
Retailer 10$2,853 USD
Retailer 7$3,206 USD
Retailer 8$4,783 USD
Retailer 5$5,179 USD
Brilliant Earth$8,610 USD

36 data points across 11 retailers

13 retailers$1,985 USD to $8,610 USD

Retailer 1
-
$1,323 USD
Price last confirmed 40 days ago
Retailer 2
-
$1,439 USD
View
Price last confirmed 40 days ago
Retailer 3
-
$1,513 USD
View
Price last confirmed 36 days ago
B+
Retailer 4
-
$1,985 USD
View
B+
Retailer 5
-
$2,352 USD
View
B+
Retailer 6
-
$2,559 USD
£2,015 GBP
View
B+
Retailer 7
-
$2,620 USD
€2,495 EUR
View
B+
Retailer 8
-
$2,853 USD
View
Retailer 9
-
$2,876 USD
View
Price last confirmed 35 days ago
B
Retailer 10
-
$3,206 USD
View
B
Retailer 11
-
$4,783 USD
View
B
Retailer 12
-
$5,179 USD
£4,078 GBP
View
Most Expensive
B
Brilliant Earth
8644959A · Nov 2
$8,610 USD
View
12 more retailers have this diamond
Prices start from $1,985 USDSave up to $6,625 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.

B+
9.51ct Round
$1,985 USD