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Heart|Lab Grown|IGI

1.00ct D SI1 Heart Lab Grown Diamond

ID • D/SI1 • IGI LG707522054

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG707522054

Diamond specifications and retailer prices

From $312 USD
As of October 30, 2026
Save $328 USD (51%) vs most expensive(unlock to see where)
5 retailers carry this diamond
Most expensive: $640 USD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

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), with a top-tier cut grade and certified by IGI LG707522054 or 707522054. Listed at 5 retailers as of October 30, 2026, with prices from $312 to $640, a $328 spread on the same certified stone. Brilliant Earth lists it at $640. 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

1.00
Carat
D
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
Crown angle37.9°
Pavilion angle41.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG707522054
Dimensions6.70 × 6.26 × 4.06 mm
L/W Ratio1.07
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
6.70 mm6.26 mm1.00 ctD / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryVery Good
FluorescenceNone
CertificateIGI LG707522054
Side View
Table 64.0%Crown 37.9°Girdle: MED-STKPavilion 41.8°Culet: NoneDepth 60.6%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $640 USD|Low: $283 USD|High: $660 USD|Avg: $507 USD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
October 31, 2026
Retailer 4$312 USD
Retailer 2$374 USD
Retailer 9$401 USD
Retailer 6$410 USD
Retailer 3$558 USD
Retailer 8$592 USD
Retailer 5$605 USD
Retailer 7$611 USD
Brilliant Earth$640 USD

13 data points across 9 retailers

5 retailers$312 USD to $640 USD

A
Cheapest Retailer
-
$312 USD
B+
Retailer 2
-
$374 USD
€356 EUR
View
B
Retailer 3
-
$558 USD
View
B
Retailer 4
-
$605 USD
SGD 818 SGD
View
Most Expensive
B
Brilliant Earth
14922831A · Oct 30
$640 USD
View
4 more retailers have this diamond
Prices start from $312 USDSave up to $328 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.

A
1.00ct Heart
$312 USD