CaratHunter
Plans
Heart|Lab Grown|IGI

1.00ct D IF Heart Lab Grown Diamond

VG • D/IF • IGI LG818661937

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG818661937

Diamond specifications and retailer prices

From $335 SGD
$262 USD
As of October 30, 2026
Save $1,468 SGD (81%) vs most expensive(unlock to see where)
19 retailers carry this diamond
Most expensive: $1,803 SGD 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 IF clarity (flawless or internally-flawless), with a very-good cut grade and certified by IGI LG818661937 or 818661937. Listed at 19 retailers as of October 30, 2026, with prices from $335 to $1,803, a $1,468 spread on the same certified stone. Brilliant Earth lists it at $1,803. 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
Colour
IF
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.7°
Pavilion angle38.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818661937
Dimensions6.30 × 6.85 × 3.98 mm
L/W Ratio1.09
Girdle conditionFaceted
Cert comments
As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.30 mm6.85 mm1.00 ctD / IF
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818661937
Side View
Table 54.0%Crown 33.7°Girdle: STK-THKPavilion 38.1°Culet: NoneDepth 58.1%

Caratlytics Score

How it works →
A
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: Oct 30
Current: $1,803 SGD|Low: $335 SGD|High: $2,109 SGD|Avg: $944 SGD|-14.5%
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
October 31, 2026
Retailer 4$335 SGD
Retailer 8$384 SGD
Retailer 10$524 SGD
Retailer 9$623 SGD
Retailer 12$638 SGD
Retailer 2$702 SGD
Retailer 13$706 SGD
Retailer 3$809 SGD
Retailer 14$907 SGD
Retailer 7$968 SGD
Retailer 6$1,261 SGD
Retailer 5$1,490 SGD
Retailer 11$1,666 SGD
Brilliant Earth$1,803 SGD

28 data points across 14 retailers

19 retailers$335 SGD to $1,803 SGD

Retailer 1
-
$303 SGD
$237 USD
Price last confirmed 23 days ago
A
Retailer 2
-
$335 SGD
$262 USD
View
Final sale: no returns
Retailer 3
-
$355 SGD
$278 USD
View
Price last confirmed 32 days ago
Retailer 4
-
$376 SGD
$294 USD
View
Price last confirmed 31 days ago
Retailer 5
-
$376 SGD
$294 USD
View
Price last confirmed 19 days ago
A
Retailer 6
-
$384 SGD
£236 GBP
View
A
Retailer 7
-
$524 SGD
$410 USD
View
A
Retailer 8
-
$623 SGD
€464 EUR
View
A
Retailer 9
-
$638 SGD
ZAR 8,067 ZAR
View
B+
Retailer 10
-
$702 SGD
£432 GBP
View
B+
Retailer 11
-
$706 SGD
$552 USD
View
B+
Retailer 12
-
$809 SGD
$633 USD
View
B+
Retailer 13
-
$907 SGD
A$1,091 AUD
View
B+
Retailer 14
-
$968 SGD
$757 USD
View
Retailer 15
-
$1,209 SGD
$946 USD
View
Price last confirmed 26 days ago
B
Retailer 16
-
$1,261 SGD
$987 USD
View
B
Retailer 17
-
$1,490 SGD
£918 GBP
View
B
Retailer 18
-
$1,666 SGD
$1,303 USD
View
Most Expensive
B
Brilliant Earth
21580600A · Oct 30
$1,803 SGD
$1,410 USD
View
18 more retailers have this diamond
Prices start from $335 SGDSave up to $1,468 SGD

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
$335 SGD