Round|Lab Grown|IGI

3.50ct E SI1 Round Lab Grown Diamond

EX • E/SI1 • IGI LG821689512

Shape and cutting style on the report: Round brilliant

Certificate IGI LG821689512

Diamond specifications and retailer prices

From ₹45,515 INR
$478 USD
As of October 26, 2026
Save ₹1,63,088 INR (78%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: ₹4,44,677 INR at Brilliant Earth · As of October 1, 2026
View at Brilliant Earth

About this 3.5ct lab-grown round diamond

This 3.5ct lab-grown round sits in the three to five carat band, graded E colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG821689512 or 821689512. Listed at 18 retailers as of October 26, 2026, with a 358% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

3.50
Carat
E
Colour
SI1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle31.7°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG821689512
Dimensions9.80 × 9.85 × 5.93 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
9.80 mm9.85 mm3.50 ctE / SI1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG821689512
Side View
Table 61.0%Crown 31.7°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 60.4%

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 26
Current: ₹93,509 INR|Low: ₹45,515 INR|High: ₹2,10,054 INR|Avg: ₹1,18,863 INR|+4.9%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
October 29, 2026
Retailer 9₹45,515 INR
Retailer 5₹69,987 INR
Retailer 6₹75,530 INR
Retailer 10₹88,174 INR
Retailer 1₹93,509 INR
Retailer 4₹96,682 INR
Retailer 2₹1,05,218 INR
Retailer 8₹1,51,876 INR
Retailer 7₹1,84,251 INR
Retailer 3₹2,08,603 INR

41 data points across 10 retailers

18 retailers₹45,515 INR to ₹2,08,603 INR

A
Retailer 1
-
₹45,515 INR
$478 USD
Price last confirmed 37 days ago
A
Retailer 2
-
₹45,515 INR
$478 USD
View
A
Retailer 3
-
₹51,038 INR
$536 USD
View
A
Retailer 4
-
₹55,799 INR
$586 USD
View
Price last confirmed 37 days ago
A
Retailer 5
-
₹56,465 INR
$593 USD
View
A
Retailer 6
-
₹56,465 INR
$593 USD
View
Price last confirmed 13 days ago
A
Retailer 7
-
₹69,987 INR
$735 USD
View
A
Retailer 8
-
₹75,530 INR
£625 GBP
View
B+
Retailer 9
-
₹88,174 INR
$926 USD
View
A
Retailer 10
-
₹93,509 INR
£773 GBP
View
A
Retailer 11
-
₹96,682 INR
€967 EUR
View
A
Retailer 12
-
₹1,05,218 INR
$1,105 USD
View
B
Retailer 13
-
₹1,51,876 INR
$1,595 USD
View
B
Retailer 14
-
₹1,81,585 INR
$1,907 USD
View
B
Retailer 15
-
₹1,81,585 INR
$1,907 USD
View
Price last confirmed 38 days ago
B
Retailer 16
-
₹1,84,251 INR
$1,935 USD
View
B
Retailer 17
-
₹2,08,603 INR
£1,725 GBP
View
Most Expensive
B
Brilliant Earth
21314933A · Oct 1
₹4,44,677 INR
$4,670 USD
View
Price last confirmed 27 days ago
17 more retailers have this diamond
Prices start from ₹45,515 INRSave up to ₹1,63,088 INR

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
3.50ct Round
₹45,515 INR