CaratHunter
Plans
Heart|Lab Grown|IGI

20.50ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG843673757

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG843673757

Diamond specifications and retailer prices

From $11,957 SGD
£7,362 GBP
As of November 2, 2026
Save $34,122 SGD (74%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $46,079 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.5ct lab-grown heart diamond

This 20.5ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG843673757 or 843673757. Listed at 14 retailers as of October 31, 2026, with prices from $11,957 to $46,079, a $34,122 spread on the same certified stone. Taylor and Hart lists it at $46,079. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

20.50
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.9°
Pavilion angle38.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG843673757
Dimensions16.79 × 18.97 × 11.17 mm
L/W Ratio1.13
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.79 mm18.97 mm20.50 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG843673757
Side View
Table 55.0%Crown 34.9°Girdle: MED-STKPavilion 38.6°Culet: NoneDepth 58.9%

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: Nov 2
Current: $15,892 SGD|Low: $11,953 SGD|High: $46,079 SGD|Avg: $21,279 SGD|+8.1%
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
Taylor and Hart
November 2, 2026
Retailer 6$11,957 SGD
Retailer 10$12,835 SGD
Retailer 12$13,348 SGD
Retailer 5$13,767 SGD
Retailer 3$13,953 SGD
Retailer 13$14,714 SGD
Retailer 4$14,888 SGD
Retailer 1$15,892 SGD
Retailer 9$16,043 SGD
Retailer 8$17,559 SGD
Retailer 7$28,161 SGD
Retailer 11$33,181 SGD
Retailer 2$42,587 SGD
Taylor and Hart$46,079 SGD

15 data points across 14 retailers

14 retailers$11,957 SGD to $46,079 SGD

A
Cheapest Retailer
-
$11,957 SGD
£7,362 GBP
A
Retailer 2
-
$12,835 SGD
$10,036 USD
View
B+
Retailer 3
-
$13,348 SGD
$10,437 USD
View
B+
Retailer 4
-
$13,767 SGD
$10,765 USD
View
B+
Retailer 5
-
$13,953 SGD
$10,910 USD
View
B+
Retailer 6
-
$14,714 SGD
$11,505 USD
View
B+
Retailer 7
-
$14,888 SGD
$11,641 USD
View
B+
Retailer 8
-
$15,892 SGD
$12,426 USD
View
B+
Retailer 9
-
$16,043 SGD
$12,544 USD
View
B+
Retailer 10
-
$17,559 SGD
£10,811 GBP
View
B
Retailer 11
-
$28,161 SGD
A$33,877 AUD
View
B
Retailer 12
-
$33,181 SGD
$25,945 USD
View
B
Retailer 13
-
$42,587 SGD
$33,300 USD
View
Most Expensive
B
Taylor and Hart
TGOWP9E · Oct 31
$46,079 SGD
$36,030 USD
View
13 more retailers have this diamond
Prices start from $11,957 SGDSave up to $34,122 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
20.50ct Heart
$11,957 SGD