CaratHunter
Plans
Round|Lab Grown|IGI

2.56ct F SI1 Round Lab Grown Diamond

EX • F/SI1 • IGI LG842606834

Shape and cutting style on the report: Round brilliant

Certificate IGI LG842606834

Diamond specifications and retailer prices

From $287 USD
As of November 1, 2026
Save $1,198 USD (81%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,485 USD at Rare Carat · As of November 1, 2026
View at Rare Carat

About this 2.56ct lab-grown round diamond

This 2.56ct lab-grown round sits in the two to three carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG842606834 or 842606834. Listed at 11 retailers as of November 1, 2026, with prices from $287 to $1,485, a $1,198 spread on the same certified stone. Rare Carat lists it at $1,485. 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

2.56
Carat
F
Color
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle32.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG842606834
Dimensions8.85 × 8.91 × 5.26 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
8.85 mm8.91 mm2.56 ctF / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG842606834
Side View
Table 61.0%Crown 32.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 59.2%

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: Nov 1
Current: $1,485 USD|Low: $273 USD|High: $1,540 USD|Avg: $906 USD|-3.6%
Rare Carat
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 2, 2026
Retailer 9$287 USD
Retailer 7$333 USD
Retailer 5$584 USD
Retailer 2$584 USD
Retailer 11$733 USD
Retailer 8$1,093 USD
Retailer 6$1,095 USD
Retailer 10$1,144 USD
Retailer 3$1,425 USD
Retailer 4$1,426 USD
Rare Carat$1,485 USD

25 data points across 11 retailers

11 retailers$287 USD to $1,485 USD

A
Cheapest Retailer
-
$287 USD
A
Retailer 2
-
$333 USD
View
A
Retailer 3
-
$584 USD
€556 EUR
View
A
Retailer 4
-
$584 USD
£460 GBP
View
B+
Retailer 5
-
$733 USD
View
B
Retailer 6
-
$1,093 USD
View
B
Retailer 7
-
$1,095 USD
View
B
Retailer 8
-
$1,144 USD
View
Retailer 9
-
$1,425 USD
SGD 1,925 SGD
View
Price last confirmed 21 days ago
B
Retailer 10
-
$1,426 USD
£1,123 GBP
View
Most Expensive
B
Rare Carat
LGRD20-164334 · Nov 1
$1,485 USD
View
10 more retailers have this diamond
Prices start from $287 USDSave up to $1,198 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
2.56ct Round
$287 USD