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Heart|Lab Grown|IGI

12.80ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG617449446

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG617449446

Diamond specifications and retailer prices

From $6,745 SGD
£4,153 GBP
As of November 2, 2026
Save $22,837 SGD (77%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $29,582 SGD at Taylor and Hart · As of October 31, 2026
View at Taylor and Hart

About this 12.8ct lab-grown heart diamond

This 12.8ct 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 LG617449446 or 617449446. Listed at 21 retailers as of October 31, 2026, with prices from $6,745 to $29,582, a $22,837 spread on the same certified stone. Taylor and Hart lists it at $29,582. 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

12.80
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle39.9°
OriginLab Grown
Grading LabIGI
CertificateIGI LG617449446
Dimensions15.99 × 14.40 × 9.42 mm
L/W Ratio1.11
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process and may include post-growth treatment Type IIa
Top View
15.99 mm14.40 mm12.80 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG617449446
Side View
Table 59.0%Crown 37.1°Girdle: MED-THKPavilion 39.9°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: $9,613 SGD|Low: $6,743 SGD|High: $21,327 SGD|Avg: $10,844 SGD|-4.3%
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
November 2, 2026
Retailer 11$6,745 SGD
Retailer 4$7,240 SGD
Retailer 2$7,588 SGD
Retailer 9$8,107 SGD
Retailer 8$8,207 SGD
Retailer 7$8,399 SGD
Retailer 15$8,399 SGD
Retailer 5$8,402 SGD
Retailer 1$9,613 SGD
Retailer 16$9,969 SGD
Retailer 13$10,699 SGD
Retailer 6$12,967 SGD
Retailer 14$13,000 SGD
Retailer 17$13,694 SGD
Retailer 10$13,779 SGD
Retailer 3$15,865 SGD
Retailer 12$16,022 SGD

38 data points across 17 retailers

21 retailers$6,745 SGD to $29,582 SGD

A
Cheapest Retailer
-
$6,745 SGD
£4,153 GBP
A
Retailer 2
-
$7,240 SGD
$5,661 USD
View
A
Retailer 3
-
$7,588 SGD
$5,933 USD
View
B+
Retailer 4
-
$8,107 SGD
$6,339 USD
View
Final sale: no returns
B+
Retailer 5
-
$8,207 SGD
$6,417 USD
View
Retailer 6
-
$8,399 SGD
$6,567 USD
View
Price last confirmed 21 days ago
B+
Retailer 7
-
$8,399 SGD
$6,567 USD
View
A
Retailer 8
-
$8,402 SGD
$6,570 USD
View
B+
Retailer 9
-
$9,613 SGD
$7,517 USD
View
B+
Retailer 10
-
$9,969 SGD
$7,795 USD
View
B+
Retailer 11
-
$10,699 SGD
£6,587 GBP
View
Retailer 12
-
$10,726 SGD
$8,387 USD
View
Price last confirmed 19 days ago
B
Retailer 13
-
$12,967 SGD
$10,139 USD
View
B+
Retailer 14
-
$13,000 SGD
ZAR 164,211 ZAR
View
B
Retailer 15
-
$13,694 SGD
$10,708 USD
View
B
Retailer 16
-
$13,779 SGD
€10,261 EUR
View
B
Retailer 17
-
$15,865 SGD
$12,405 USD
View
B
Retailer 18
-
$16,022 SGD
A$19,274 AUD
View
B
Retailer 19
-
$20,209 SGD
$15,802 USD
View
B
Retailer 20
-
$23,360 SGD
$18,266 USD
View
Most Expensive
B
Taylor and Hart
8BL32P5 · Oct 31
$29,582 SGD
$23,131 USD
View
20 more retailers have this diamond
Prices start from $6,745 SGDSave up to $22,837 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
12.80ct Heart
$6,745 SGD