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Heart|Lab Grown|IGI

18.86ct G VS1 Heart Lab Grown Diamond

ID • G/VS1 • IGI LG712589605

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG712589605

Diamond specifications and retailer prices

From $8,838 SGD
£5,441 GBP
As of November 2, 2026
Save $27,972 SGD (76%) vs most expensive(unlock to see where)
16 retailers carry this diamond
Most expensive: $57,469 SGD at With Clarity · As of November 3, 2026
View at With Clarity

About this 18.86ct lab-grown heart diamond

This 18.86ct 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 LG712589605 or 712589605. Listed at 16 retailers as of October 31, 2026, with a 317% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

18.86
Carat
G
Colour
VS1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle37.1°
Pavilion angle37°
OriginLab Grown
Grading LabIGI
CertificateIGI LG712589605
Dimensions18.72 × 16.43 × 10.41 mm
L/W Ratio1.14
Girdle conditionFaceted
Culet sizePointed
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
18.72 mm16.43 mm18.86 ctG / VS1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG712589605
Side View
Table 58.0%Crown 37.1°Girdle: MED-STKPavilion 37°Culet: NoneDepth 55.6%

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: $13,420 SGD|Low: $8,838 SGD|High: $57,469 SGD|Avg: $20,411 SGD|-0.5%
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
Retailer 18
With Clarity
November 3, 2026
Retailer 11$8,838 SGD
Retailer 7$9,487 SGD
Retailer 5$9,865 SGD
Retailer 18$10,786 SGD
Retailer 17$10,935 SGD
Retailer 16$11,005 SGD
Retailer 2$11,557 SGD
Retailer 3$12,376 SGD
Retailer 14$12,441 SGD
Retailer 13$12,744 SGD
Retailer 8$13,141 SGD
Retailer 1$13,420 SGD
Retailer 15$17,034 SGD
Retailer 12$20,967 SGD
Retailer 4$27,590 SGD
Retailer 9$28,090 SGD
Retailer 6$36,810 SGD
Retailer 10$42,575 SGD
With Clarity$57,469 SGD

8 data points across 19 retailers

16 retailers$8,838 SGD to $36,810 SGD

A
Cheapest Retailer
-
$8,838 SGD
£5,441 GBP
A
Retailer 2
-
$9,487 SGD
$7,418 USD
View
A
Retailer 3
-
$9,865 SGD
$7,714 USD
View
A
Retailer 4
-
$10,786 SGD
$8,434 USD
View
A
Retailer 5
-
$10,935 SGD
$8,550 USD
View
A
Retailer 6
-
$11,005 SGD
$8,605 USD
View
A
Retailer 7
-
$11,557 SGD
HK$70,600 HKD
View
B+
Retailer 8
-
$12,376 SGD
$9,677 USD
View
B+
Retailer 9
-
$12,441 SGD
$9,728 USD
View
B+
Retailer 10
-
$12,744 SGD
$9,965 USD
View
B+
Retailer 11
-
$13,420 SGD
£8,263 GBP
View
B+
Retailer 12
-
$17,034 SGD
ZAR 215,179 ZAR
View
B
Retailer 13
-
$20,967 SGD
A$25,222 AUD
View
B
Retailer 14
-
$27,590 SGD
$21,573 USD
View
B
Retailer 15
-
$36,810 SGD
$28,782 USD
View
Most Expensive
With Clarity
712589605 · Nov 3
$57,469 SGD
$44,936 USD
View
Price under review
15 more retailers have this diamond
Prices start from $8,838 SGDSave up to $27,972 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
18.86ct Heart
$8,838 SGD