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Heart|Lab Grown|IGI

20.51ct G VS1 Heart Lab Grown Diamond

VG • G/VS1 • IGI LG720595533

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG720595533

Diamond specifications and retailer prices

From $15,109 SGD
$11,814 USD
As of November 2, 2026
Save $36,061 SGD (70%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: $51,169 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 20.51ct lab-grown heart diamond

This 20.51ct lab-grown heart sits in the over five carat band, graded G colour (near-colourless) and VS1 clarity (very-slightly-included), with a very-good cut grade and certified by IGI LG720595533 or 720595533. Listed at 14 retailers as of October 31, 2026, with prices from $15,109 to $51,169, a $36,061 spread on the same certified stone. Taylor and Hart lists it at $51,169. 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

20.51
Carat
G
Colour
VS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle41.8°
Pavilion angle38.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG720595533
Dimensions16.59 × 17.88 × 10.68 mm
L/W Ratio1.08
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
16.59 mm17.88 mm20.51 ctG / VS1
OriginLab Grown
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG720595533
Side View
Table 66.0%Crown 41.8°Girdle: VTK-ETKPavilion 38.5°Culet: NoneDepth 59.7%

Caratlytics Score

How it works →
B+
Very Good
Strong quality and value balance
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 2
Current: $33,051 SGD|Low: $14,505 SGD|High: $51,169 SGD|Avg: $22,581 SGD|-0.2%
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
Taylor and Hart
November 1, 2026
Retailer 10$15,109 SGD
Retailer 14$15,714 SGD
Retailer 3$15,971 SGD
Retailer 13$16,426 SGD
Retailer 4$16,921 SGD
Retailer 7$17,278 SGD
Retailer 2$17,527 SGD
Retailer 11$17,527 SGD
Retailer 9$18,596 SGD
Retailer 12$18,691 SGD
Retailer 6$20,296 SGD
Retailer 8$21,133 SGD
Retailer 1$33,051 SGD
Retailer 5$33,975 SGD
Taylor and Hart$51,169 SGD

16 data points across 15 retailers

14 retailers$15,109 SGD to $51,169 SGD

B+
Cheapest Retailer
-
$15,109 SGD
$11,814 USD
B+
Retailer 2
-
$15,714 SGD
$12,287 USD
View
B+
Retailer 3
-
$15,971 SGD
$12,488 USD
View
B+
Retailer 4
-
$16,426 SGD
$12,844 USD
View
B+
Retailer 5
-
$16,921 SGD
$13,231 USD
View
Final sale: no returns
B
Retailer 6
-
$17,278 SGD
$13,510 USD
View
B+
Retailer 7
-
$17,527 SGD
$13,705 USD
View
Retailer 8
-
$17,527 SGD
$13,705 USD
View
Price last confirmed 21 days ago
B
Retailer 9
-
$18,596 SGD
$14,541 USD
View
B
Retailer 10
-
$18,691 SGD
$14,615 USD
View
Retailer 11
-
$21,133 SGD
£13,011 GBP
View
Price last confirmed 14 days ago
B
Retailer 12
-
$33,051 SGD
A$39,759 AUD
View
B
Retailer 13
-
$33,975 SGD
$26,566 USD
View
Most Expensive
B
Taylor and Hart
GW5JPQB · Oct 31
$51,169 SGD
$40,011 USD
View
13 more retailers have this diamond
Prices start from $15,109 SGDSave up to $36,061 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.

B+
20.51ct Heart
$15,109 SGD