Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

D/SI1

Diamond specifications and retailer prices

From $149 USD
As of October 30, 2026
Save $444 USD (75%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $593 USD at NZ Jewellers · As of October 29, 2026
View at NZ Jewellers

About this 1ct lab-grown heart diamond

This 1ct lab-grown heart sits in the classic one-carat band, graded D colour (colourless) and SI1 clarity (slightly-included) and certified by IGI. Listed at 5 retailers as of October 29, 2026, with prices from $149 to $593, a $444 spread on the same certified stone. NZ Jewellers lists it at $593. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.00
Carat
D
Color
SI1
Clarity
-
Cut

Specifications

Cut
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabIGI
Dimensions6.20 × 6.81 × 3.95 mm
L/W Ratio1.10
Top View
6.20 mm6.81 mm1.00 ctD / SI1
OriginLab Grown
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI
Side View
Table 59.5%CrownGirdle: STK-THKPavilionCulet: NoneDepth 58.0%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $593 USD|Low: $100 USD|High: $593 USD|Avg: $222 USD
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
October 30, 2026
Retailer 7$100 USD
Retailer 5$149 USD
Retailer 4$173 USD
Retailer 3$185 USD
Retailer 6$185 USD
Retailer 2$221 USD
NZ Jewellers$593 USD

16 data points across 7 retailers

5 retailers$149 USD to $593 USD

B+
Cheapest Retailer
-
$149 USD
B+
Retailer 2
-
$173 USD
View
B+
Retailer 3
-
$185 USD
View
B+
Retailer 4
-
$221 USD
£174 GBP
View
Most Expensive
C
NZ Jewellers
7a902834-7a0e-4a2b-9c36-b4b670ac77c7 · Oct 29
$593 USD
View
4 more retailers have this diamond
Prices start from $149 USDSave up to $444 USD

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.

B+
1.00ct Heart
$149 USD