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Round|Lab Grown|IGI

4.18ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG683520148

Shape and cutting style on the report: Round brilliant

Certificate IGI LG683520148

Diamond specifications and retailer prices

From ₹1,75,069 INR
£1,452 GBP
As of October 30, 2026
Save ₹10,72,574 INR (86%) vs most expensive(unlock to see where)
28 retailers carry this diamond
Most expensive: ₹15,01,160 INR at Brilliant Earth · As of October 24, 2026
View at Brilliant Earth

About this 4.18ct lab-grown round diamond

This 4.18ct lab-grown round sits in the three to five carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG683520148 or 683520148. Listed at 28 retailers as of October 30, 2026, with a 613% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

4.18
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.6°
Pavilion angle40.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG683520148
Dimensions10.53 × 10.48 × 6.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS 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
10.53 mm10.48 mm4.18 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG683520148
Side View
Table 58.0%Crown 33.6°Girdle: MediumPavilion 40.4°Culet: NoneDepth 59.5%

Caratlytics Score

How it works →
A+
Exceptional
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 30
Current: ₹12,47,643 INR|Low: ₹1,74,480 INR|High: ₹15,01,160 INR|Avg: ₹4,64,325 INR|-16.9%
Brilliant Earth
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
Retailer 16
Retailer 17
Retailer 18
Retailer 19
Retailer 20
Retailer 21
Retailer 22
October 31, 2026
Retailer 16₹1,75,069 INR
Retailer 14₹1,94,553 INR
Retailer 6₹1,97,401 INR
Retailer 8₹2,04,427 INR
Retailer 15₹2,11,644 INR
Retailer 13₹2,20,284 INR
Retailer 21₹2,25,791 INR
Retailer 5₹2,67,379 INR
Retailer 2₹3,09,287 INR
Retailer 20₹3,20,456 INR
Retailer 4₹3,39,731 INR
Retailer 3₹3,43,909 INR
Retailer 18₹4,41,859 INR
Retailer 17₹4,80,390 INR
Retailer 12₹4,84,297 INR
Retailer 10₹5,50,900 INR
Retailer 19₹5,74,448 INR
Retailer 9₹5,79,684 INR
Retailer 7₹6,45,379 INR
Retailer 11₹7,73,666 INR
Retailer 22₹12,12,512 INR
Brilliant Earth₹12,47,643 INR

29 data points across 22 retailers

28 retailers₹1,75,069 INR to ₹12,47,643 INR

A+
Cheapest Retailer
-
₹1,75,069 INR
£1,452 GBP
Retailer 2
-
₹1,94,553 INR
$2,049 USD
View
Price last confirmed 8 days ago
A
Retailer 3
-
₹1,97,401 INR
$2,079 USD
View
Final sale: no returns
A
Retailer 4
-
₹2,04,427 INR
$2,153 USD
View
Retailer 5
-
₹2,11,644 INR
$2,229 USD
View
Price last confirmed 11 days ago
A
Retailer 6
-
₹2,20,284 INR
$2,320 USD
View
Retailer 7
-
₹2,25,696 INR
$2,377 USD
View
Price last confirmed 20 days ago
A
Retailer 8
-
₹2,25,791 INR
$2,378 USD
View
A
Retailer 9
-
₹2,67,379 INR
HK$22,000 HKD
View
A
Retailer 10
-
₹3,09,287 INR
£2,565 GBP
View
Retailer 11
-
₹3,10,202 INR
$3,267 USD
View
Price last confirmed 10 days ago
A
Retailer 12
-
₹3,20,456 INR
$3,375 USD
View
A
Retailer 13
-
₹3,39,731 INR
$3,578 USD
View
A
Retailer 14
-
₹3,43,909 INR
$3,622 USD
View
A
Retailer 15
-
₹4,41,859 INR
€4,432 EUR
View
A
Retailer 16
-
₹4,80,390 INR
ZAR 81,735 ZAR
View
Retailer 17
-
₹4,84,297 INR
A$7,847 AUD
View
Price last confirmed 9 days ago
A
Retailer 18
-
₹5,50,900 INR
$5,802 USD
View
B+
Retailer 19
-
₹5,74,448 INR
$6,050 USD
View
A
Retailer 20
-
₹5,79,684 INR
$6,105 USD
View
B+
Retailer 21
-
₹6,34,931 INR
$6,687 USD
View
B+
Retailer 22
-
₹6,45,379 INR
£5,352 GBP
View
B+
Retailer 23
-
₹7,73,666 INR
SGD 11,011 SGD
View
B+
Retailer 24
-
₹7,89,515 INR
$8,315 USD
View
Retailer 25
-
₹8,94,752 INR
£7,420 GBP
View
Price last confirmed 22 days ago
B
Retailer 26
-
₹12,12,512 INR
$12,770 USD
View
B+
Retailer 27
-
₹12,47,643 INR
$13,140 USD
View
Most Expensive
Brilliant Earth
13152316A · Oct 24
₹15,01,160 INR
$15,810 USD
View
Price last confirmed 7 days ago
27 more retailers have this diamond
Prices start from ₹1,75,069 INRSave up to ₹10,72,574 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+
4.18ct Round
₹1,75,069 INR