Round|Lab Grown|IGI

4.51ct D IF Round Lab Grown Diamond

ID • D/IF • IGI LG712591461

Shape and cutting style on the report: Round brilliant

Certificate IGI LG712591461

Diamond specifications and retailer prices

From ₹4,41,448 INR

£3,661 GBP

As of October 30, 2026

Save ₹26,15,942 INR (86%) vs most expensive(unlock to see where)

24 retailers carry this diamond

Most expensive: ₹35,88,730 INR at Mervis Diamond Importers · As of October 31, 2026

View at Mervis Diamond Importers

About this 4.51ct lab-grown round diamond

This 4.51ct 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 LG712591461 or 712591461. Listed at 24 retailers as of October 30, 2026, with a 593% 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

4.51

Carat

Colour

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle34.1°

Pavilion angle40.8°

OriginLab Grown

Grading LabIGI

CertificateIGI LG712591461

Dimensions10.55 × 10.60 × 6.53 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

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG712591461

Side View

Caratlytics Score

How it works →

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 30

Current: ₹35,88,730 INR|Low: ₹4,26,705 INR|High: ₹35,88,730 INR|Avg: ₹11,50,429 INR

Mervis Diamond Importers

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

November 1, 2026

Retailer 12₹4,41,448 INR

Retailer 18₹4,44,461 INR

Retailer 8₹4,92,316 INR

Retailer 9₹4,97,728 INR

Retailer 4₹5,15,579 INR

Retailer 6₹5,15,579 INR

Retailer 17₹5,18,902 INR

Retailer 16₹6,58,383 INR

Retailer 2₹7,25,503 INR

Retailer 5₹7,97,295 INR

Retailer 11₹9,70,864 INR

Retailer 14₹11,64,142 INR

Retailer 13₹12,11,169 INR

Retailer 15₹12,53,359 INR

Retailer 7₹16,32,855 INR

Retailer 10₹16,84,464 INR

Retailer 3₹25,46,559 INR

Mervis Diamond Importers₹35,88,730 INR

44 data points across 18 retailers

24 retailers₹4,41,448 INR to ₹30,57,390 INR

Cheapest Retailer

₹4,41,448 INR

£3,661 GBP

Retailer 2

₹4,44,461 INR

$4,681 USD

View

Retailer 3

₹4,49,683 INR

$4,736 USD

View

Retailer 4

₹4,65,730 INR

$4,905 USD

View

Retailer 5

₹4,92,316 INR

$5,185 USD

View

Retailer 6

₹4,97,728 INR

$5,242 USD

View

Final sale: no returns

Retailer 7

₹5,15,579 INR

$5,430 USD

View

Price last confirmed 15 days ago

Retailer 8

₹5,15,579 INR

$5,430 USD

View

Retailer 9

₹5,18,902 INR

$5,465 USD

View

B+

Retailer 10

₹6,58,383 INR

$6,934 USD

View

B+

Retailer 11

₹6,75,569 INR

$7,115 USD

View

B+

Retailer 12

₹7,25,503 INR

£6,016 GBP

View

B+

Retailer 13

₹7,97,295 INR

$8,397 USD

View

B+

Retailer 14

₹9,70,864 INR

$10,225 USD

View

B+

Retailer 15

₹11,64,142 INR

£9,654 GBP

View

B+

Retailer 16

₹12,11,169 INR

ZAR 206,072 ZAR

View

Retailer 17

₹12,53,359 INR

A$20,308 AUD

View

Price last confirmed 9 days ago

Retailer 18

₹14,19,077 INR

$14,946 USD

View

Retailer 19

₹16,32,855 INR

$17,197 USD

View

Retailer 20

₹16,84,464 INR

$17,741 USD

View

Retailer 21

₹20,36,147 INR

$21,444 USD

View

Retailer 22

₹25,46,559 INR

$26,820 USD

View

Retailer 23

₹30,57,390 INR

$32,200 USD

View

Most Expensive

Mervis Diamond Importers

1985409131 · Oct 31

₹35,88,730 INR

$37,796 USD

View

Price under review

23 more retailers have this diamond

Prices start from ₹4,41,448 INRSave up to ₹26,15,942 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.

Similar diamonds

4.51ct Round

₹4,41,448 INR