How much does a 0.50 to 0.74ct E SI1 lab grown marquise diamond cost?

As of October 2026, 0.50 to 0.74ct E SI1 lab grown marquise diamonds typically cost ₹11,774 INR to ₹58,992 INR, with a median price of ₹39,130 INR. There are currently 41 diamonds matching this specification available across retailers.

Where can I find the best price on a E SI1 marquise diamond?

About 31% of these diamonds are available at multiple retailers, with an average price spread of 84%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct E SI1 Lab Grown Marquise

Quick answer

As of October 2026, there are 41 lab grown marquise diamonds with E colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run ₹11,774 INR to ₹58,992 INR, with a median of ₹39,130 INR. At least 28 retailers stock this exact specification, and 31% of the stones appear at more than one of them, with an average price spread of 84%. Half of all listings fall between ₹28,414 INR and ₹69,054 INR per carat. The same specification in natural form lists at a median of about ₹1,74,898 INR per carat. Over the last 30 days the median price moved -1.4% and the number of listings moved +14.1%.

Three of the best scored stones at this specification right now:

Caratlytics Diamond Price Index, September 2026: natural diamonds at 2,335 USD per carat and lab-grown at 443 USD per carat, a natural to lab ratio of 5.3 to 1. Marquise lab grown stones in the index: 485 USD per carat, -3.2% month on month. See the full index release

Figures come from current listings across more than 100 retailers and refresh daily. The index is a monthly release.

Last updated: October 2026

Available

Lowest Price

₹7,881 INR

Highest Price

₹1,06,478 INR

Average Price

₹36,528 INR

Market Intelligence

Retailers Selling

Cross Retailer %

30.9%

Price Spread

83.5%

30-Day Price Trend

-1.4%

30-Day Supply Change

+14.1%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$513/ct

10th Percentile

$198

Median

$513

90th Percentile

$936

Score Distribution

92 diamonds scored across 4 quality tiers

Excellent

11 (12.0%)

Very Good

14 (15.2%)

Good

19 (20.7%)

Average

48 (52.2%)

Find Your Diamond

Search 41 E SI1 marquise diamonds and compare prices.

Search Diamonds

Consider Instead

Save money without compromising on what matters. These alternatives are visually similar but cost less.

F SI1F colour is visually identical to E to the naked eye

Save 5%

E SI2SI2 inclusions are not visible without magnification

Save 24%

Related Specifications

D IF D VVS1 D VVS2 D VS1 D VS2 D SI1 E IF E VVS1 E VVS2 E VS1 E VS2 E SI1 F IF F VVS1 F VVS2 F VS1 F VS2 F SI1 G IF G VVS1 G VVS2 G VS1 G VS2 G SI1 H IF H VVS1 H VVS2 H VS1 H VS2 H SI1 I IF I VVS1 I VVS2 I VS1 I VS2 I SI1