Oval|Lab Grown|IGI

1.78ct F SI1 Oval Lab Grown Diamond

ID • F/SI1 • IGI LG779671606

Shape and cutting style on the report: Oval brilliant

Certificate IGI LG779671606

Diamond specifications and retailer prices

From ₹22,313 INR

$235 USD

As of November 1, 2026

Save ₹1,00,172 INR (82%) vs most expensive(unlock to see where)

16 retailers carry this diamond

Most expensive: ₹1,22,486 INR at Brilliant Earth · As of November 1, 2026

View at Brilliant Earth

About this 1.78ct lab-grown oval diamond

This 1.78ct lab-grown oval sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG779671606 or 779671606. Listed at 16 retailers as of November 1, 2026, with prices from ₹22,313 to ₹1,22,486, a ₹1,00,172 spread on the same certified stone. Brilliant Earth lists it at ₹1,22,486. 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

1.78

Carat

Colour

SI1

Clarity

Ideal

Cut

Specifications

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

Crown angle37.1°

Pavilion angle41.2°

OriginLab Grown

Grading LabIGI

CertificateIGI LG779671606

Dimensions9.51 × 6.71 × 4.36 mm

L/W Ratio1.42

Girdle conditionFaceted

Culet sizePointed

Cert comments

This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa

View IGI Report →View Loupe360 Video →

Top View

OriginLab Grown

CutIdeal

PolishExcellent

SymmetryExcellent

FluorescenceNone

CertificateIGI LG779671606

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: Nov 1

Current: ₹1,22,486 INR|Low: ₹21,459 INR|High: ₹1,26,284 INR|Avg: ₹60,257 INR|-3.0%

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

November 1, 2026

Retailer 11₹22,313 INR

Retailer 3₹24,972 INR

Retailer 4₹25,921 INR

Retailer 6₹27,630 INR

Retailer 12₹27,630 INR

Retailer 10₹35,848 INR

Retailer 13₹46,810 INR

Retailer 7₹52,253 INR

Retailer 5₹59,724 INR

Retailer 14₹88,873 INR

Retailer 9₹89,253 INR

Retailer 8₹1,02,071 INR

Retailer 2₹1,10,819 INR

Brilliant Earth₹1,22,486 INR

43 data points across 14 retailers

16 retailers₹22,313 INR to ₹1,22,486 INR

Cheapest Retailer

₹22,313 INR

$235 USD

Retailer 2

₹24,972 INR

$263 USD

View

Final sale: no returns

Retailer 3

₹25,921 INR

$273 USD

View

Retailer 4

₹27,630 INR

$291 USD

View

Price last confirmed 7 days ago

Retailer 5

₹27,630 INR

$291 USD

View

Retailer 6

₹35,848 INR

£297 GBP

View

Price last confirmed 17 days ago

B+

Retailer 7

₹46,810 INR

$493 USD

View

Retailer 8

₹52,253 INR

£433 GBP

View

Retailer 9

₹59,059 INR

$622 USD

View

Retailer 10

₹59,724 INR

$629 USD

View

B+

Retailer 11

₹88,873 INR

$936 USD

View

B+

Retailer 12

₹89,253 INR

$940 USD

View

B+

Retailer 13

₹93,875 INR

$989 USD

View

B+

Retailer 14

₹1,02,071 INR

$1,075 USD

View

B+

Retailer 15

₹1,10,819 INR

£919 GBP

View

Most Expensive

Brilliant Earth

17997459A · Nov 1

₹1,22,486 INR

$1,290 USD

View

15 more retailers have this diamond

Prices start from ₹22,313 INRSave up to ₹1,00,172 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

1.78ct Oval

₹22,313 INR