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Heart|Lab Grown|IGI

1.80ct I SI1 Heart Lab Grown Diamond

VG • I/SI1 • IGI LG425067609

Shape and cutting style on the report: Heart brilliant

Certificate IGI LG425067609

Diamond specifications and retailer prices

From $1,986 SGD
$1,549 USD
As of October 27, 2026
Save $2,333 SGD (54%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,616 SGD at MOH London · As of October 21, 2026
View at MOH London

About this 1.8ct lab-grown heart diamond

This 1.8ct lab-grown heart sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a very-good cut grade and certified by IGI LG425067609 or 425067609. Listed at 11 retailers as of October 27, 2026, with a 117% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. 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

1.80
Carat
I
Colour
SI1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
Crown angle32.6°
Pavilion angle40°
OriginLab Grown
Grading LabIGI
CertificateIGI LG425067609
Dimensions8.71 × 7.28 × 4.81 mm
L/W Ratio1.20
Girdle conditionFaceted
Culet sizePointed
Cert comments
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Top View
8.71 mm7.28 mm1.80 ctI / SI1
OriginLab Grown
CutVery Good
PolishVery Good
SymmetryVery Good
FluorescenceNone
CertificateIGI LG425067609
Side View
Table 64.0%Crown 32.6°Girdle: STK-THKPavilion 40°Culet: NoneDepth 55.2%

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: Oct 27
Current: $6,616 SGD|Low: $1,906 SGD|High: $6,669 SGD|Avg: $3,579 SGD|-0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 18, 2026
Retailer 4$1,986 SGD
Retailer 5$2,103 SGD
Retailer 8$2,224 SGD
Retailer 6$2,304 SGD
Retailer 9$2,526 SGD
Retailer 10$3,121 SGD
Retailer 3$3,249 SGD
Retailer 7$3,626 SGD
Retailer 2$4,075 SGD
Retailer 11$6,598 SGD
MOH London$6,616 SGD

12 data points across 11 retailers

11 retailers$1,986 SGD to $4,319 SGD

B+
Cheapest Retailer
-
$1,986 SGD
$1,549 USD
B+
Retailer 2
-
$2,103 SGD
$1,640 USD
View
B
Retailer 3
-
$2,162 SGD
$1,686 USD
View
B
Retailer 4
-
$2,224 SGD
$1,735 USD
View
Final sale: no returns
B
Retailer 5
-
$2,304 SGD
$1,797 USD
View
B
Retailer 6
-
$2,304 SGD
$1,797 USD
View
Price last confirmed 16 days ago
B
Retailer 7
-
$2,526 SGD
$1,970 USD
View
B
Retailer 8
-
$3,626 SGD
$2,828 USD
View
B
Retailer 9
-
$4,075 SGD
$3,178 USD
View
B
Retailer 10
-
$4,319 SGD
$3,369 USD
View
Most Expensive
B
MOH London
LG425067609 · Oct 21
$6,616 SGD
£4,063 GBP
View
Price last confirmed 8 days ago
10 more retailers have this diamond
Prices start from $1,986 SGDSave up to $2,333 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+
1.80ct Heart
$1,986 SGD