CaratHunter
Plans
Heart|Lab Grown|IGI

1.23ct D VS1 Heart Lab Grown Diamond

ID • D/VS1 • IGI LG635421819

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG635421819

Diamond specifications and retailer prices

From $247 SGD
As of November 4, 2026
Save $1,251 SGD (84%) vs most expensive(unlock to see where)
18 retailers carry this diamond
Most expensive: $1,497 SGD at Reve Diamonds · As of November 4, 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 D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG635421819 or 635421819. Listed at 18 retailers as of November 4, 2026, with prices from $247 to $1,497, a $1,251 spread on the same certified stone. Reve Diamonds lists it at $1,497. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.23
Carat
D
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle39.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG635421819
Dimensions7.31 × 6.80 × 4.35 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
7.31 mm6.80 mm1.23 ctD / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG635421819
Side View
Table 58.0%Crown 36°Girdle: MED-THKPavilion 39.5°Culet: NoneDepth 59.5%

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: Nov 4
Current: $406 SGD|Low: $247 SGD|High: $1,512 SGD|Avg: $709 SGD|-3.3%
Retailer 1
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
Retailer 15
Retailer 16
Retailer 17
Reve Diamonds
November 5, 2026
Retailer 13$247 SGD
Retailer 15$276 SGD
Retailer 3$286 SGD
Retailer 11$307 SGD
Retailer 8$312 SGD
Retailer 1$406 SGD
Retailer 2$535 SGD
Retailer 5$538 SGD
Retailer 7$544 SGD
Retailer 12$552 SGD
Retailer 10$608 SGD
Retailer 4$761 SGD
Retailer 14$984 SGD
Retailer 17$987 SGD
Retailer 16$1,052 SGD
Retailer 9$1,456 SGD
Retailer 6$1,457 SGD
Reve Diamonds$1,497 SGD

35 data points across 18 retailers

18 retailers$247 SGD to $1,497 SGD

A
Cheapest Retailer
-
$247 SGD
A
Retailer 2
-
$276 SGD
View
Final sale: no returns
A
Retailer 3
-
$286 SGD
View
A
Retailer 4
-
$307 SGD
View
Retailer 5
-
$312 SGD
View
Price last confirmed 11 days ago
A
Retailer 6
-
$406 SGD
View
A
Retailer 7
-
$535 SGD
View
A
Retailer 8
-
$538 SGD
View
A
Retailer 9
-
$544 SGD
View
A
Retailer 10
-
$552 SGD
View
B+
Retailer 11
-
$608 SGD
View
B+
Retailer 12
-
$722 SGD
View
B+
Retailer 13
-
$761 SGD
View
B+
Retailer 14
-
$984 SGD
View
B
Retailer 15
-
$987 SGD
View
B
Retailer 16
-
$1,052 SGD
View
B
Retailer 17
-
$1,457 SGD
View
Most Expensive
B
Reve Diamonds
EF8A55ECE · Nov 4
$1,497 SGD
$1,172 USD
View
17 more retailers have this diamond
Prices start from $247 SGDSave up to $1,251 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
$247 SGD