How much does a 0.50 to 0.74ct G SI1 lab grown princess diamond cost?

As of October 2026, 0.50 to 0.74ct G SI1 lab grown princess diamonds typically cost $272 SGD to $2,597 SGD, with a median price of $2,536 SGD. There are currently 14 diamonds matching this specification available across retailers.

Where can I find the best price on a G SI1 princess diamond?

About 23% of these diamonds are available at multiple retailers, with an average price spread of 169%. A comparison tool like Carat Hunter lets you see all the prices side by side.

0.50 to 0.74ct G SI1 Lab Grown Princess

Quick answer

As of October 2026, there are 14 lab grown princess diamonds with G colour and SI1 clarity in the 0.50 to 0.74ct range available across retailers worldwide. Prices typically run $272 SGD to $2,597 SGD, with a median of $2,536 SGD. At least 23 retailers stock this exact specification, and 23% of the stones appear at more than one of them, with an average price spread of 169%. Half of all listings fall between $458 SGD and $1,824 SGD per carat. The same specification in natural form lists at a median of about $1,531 SGD per carat. Over the last 30 days the median price moved +0.2% and the number of listings moved +16.6%.

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. Princess lab grown stones in the index: 461 USD per carat, -4.8% 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

$121 SGD

Highest Price

$2,658 SGD

Average Price

$1,628 SGD

Market Intelligence

Retailers Selling

Cross Retailer %

23.3%

Price Spread

169.2%

30-Day Price Trend

+0.2%

30-Day Supply Change

+16.6%

Volatility (30d)

0.01

Price Range

Price per carat distribution across retailers

$630/ct

10th Percentile

$231

Median

$630

90th Percentile

$3,012

Score Distribution

18 diamonds scored across 4 quality tiers

Excellent

1 (5.6%)

Very Good

3 (16.7%)

Good

4 (22.2%)

Average

10 (55.6%)

Find Your Diamond

Search 14 G SI1 princess diamonds and compare prices.

Search Diamonds

Consider Instead

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

G SI2SI2 inclusions are not visible without magnification

Save 44%

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