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Heart|Lab Grown|IGI

1.23ct E VS1 Heart Lab Grown Diamond

VG • E/VS1 • IGI LG845615199

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG845615199

Diamond specifications and retailer prices

From $308 SGD
$241 USD
As of October 30, 2026
Save $1,169 SGD (79%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $1,477 SGD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.23ct lab-grown heart diamond

This 1.23ct lab-grown heart sits in the classic one-carat band, graded E colour (colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG845615199 or 845615199. Listed at 11 retailers as of October 30, 2026, with prices from $308 to $1,477, a $1,169 spread on the same certified stone. Reve Diamonds lists it at $1,477. 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

1.23
Carat
E
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.6°
Pavilion angle39.2°
OriginLab Grown
Grading LabIGI
CertificateIGI LG845615199
Dimensions6.42 × 7.57 × 4.31 mm
L/W Ratio1.18
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
6.42 mm7.57 mm1.23 ctE / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG845615199
Side View
Table 57.0%Crown 34.6°Girdle: STK-THKPavilion 39.2°Culet: NoneDepth 56.9%

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: $961 SGD|Low: $304 SGD|High: $1,505 SGD|Avg: $813 SGD|-3.5%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Reve Diamonds
October 31, 2026
Retailer 5$308 SGD
Retailer 8$374 SGD
Retailer 6$522 SGD
Retailer 7$541 SGD
Retailer 3$570 SGD
Retailer 2$755 SGD
Retailer 1$961 SGD
Retailer 9$1,027 SGD
Retailer 4$1,176 SGD
Retailer 10$1,385 SGD
Reve Diamonds$1,477 SGD

11 data points across 11 retailers

11 retailers$308 SGD to $1,477 SGD

A
Cheapest Retailer
-
$308 SGD
$241 USD
Final sale: no returns
A
Retailer 2
-
$374 SGD
£231 GBP
View
A
Retailer 3
-
$522 SGD
$408 USD
View
A
Retailer 4
-
$541 SGD
£333 GBP
View
B+
Retailer 5
-
$570 SGD
$446 USD
View
Retailer 6
-
$755 SGD
A$909 AUD
View
Price last confirmed 7 days ago
B
Retailer 7
-
$961 SGD
$752 USD
View
B
Retailer 8
-
$1,027 SGD
$803 USD
View
B
Retailer 9
-
$1,176 SGD
$920 USD
View
B
Retailer 10
-
$1,385 SGD
£853 GBP
View
Most Expensive
B
Reve Diamonds
73A5127AF · Oct 30
$1,477 SGD
$1,155 USD
View
10 more retailers have this diamond
Prices start from $308 SGDSave up to $1,169 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
1.23ct Heart
$308 SGD