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Round|Lab Grown|IGI

1.15ct H SI1 Round Lab Grown Diamond

ID • H/SI1 • IGI LG492136381

Shape and cutting style on the report: Round brilliant

Certificate IGI LG492136381

Diamond specifications and retailer prices

From $844 SGD
$660 USD
As of October 30, 2026
Save $2,573 SGD (75%) vs most expensive(unlock to see where)
12 retailers carry this diamond
Most expensive: $4,332 SGD at MOH London · As of October 19, 2026
View at MOH London

About this 1.15ct lab-grown round diamond

This 1.15ct lab-grown round sits in the classic one-carat band, graded H colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG492136381 or 492136381. Listed at 12 retailers as of October 30, 2026, with a 305% spread between the cheapest and most expensive listing. That is exactly the kind of price-discovery gap Carat Hunter was built to surface. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.15
Carat
H
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.7°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG492136381
Dimensions6.72 × 6.77 × 4.07 mm
L/W Ratio1.01
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
6.72 mm6.77 mm1.15 ctH / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG492136381
Side View
Table 59.0%Crown 34.7°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 60.4%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $4,332 SGD|Low: $844 SGD|High: $4,359 SGD|Avg: $1,920 SGD|+0.6%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 30, 2026
Retailer 2$844 SGD
Retailer 5$946 SGD
Retailer 9$1,057 SGD
Retailer 6$1,097 SGD
Retailer 8$1,097 SGD
Retailer 10$1,323 SGD
Retailer 3$1,722 SGD
Retailer 7$1,778 SGD
Retailer 4$2,703 SGD
Retailer 11$3,417 SGD
MOH London$4,332 SGD

12 data points across 11 retailers

12 retailers$844 SGD to $3,417 SGD

A
Cheapest Retailer
-
$844 SGD
$660 USD
A
Retailer 2
-
$946 SGD
$740 USD
View
A
Retailer 3
-
$1,029 SGD
$805 USD
View
A
Retailer 4
-
$1,057 SGD
$827 USD
View
Final sale: no returns
A
Retailer 5
-
$1,097 SGD
$858 USD
View
Retailer 6
-
$1,097 SGD
$858 USD
View
Price last confirmed 19 days ago
A
Retailer 7
-
$1,323 SGD
$1,035 USD
View
B+
Retailer 8
-
$1,778 SGD
$1,391 USD
View
B
Retailer 9
-
$2,703 SGD
$2,114 USD
View
B
Retailer 10
-
$3,085 SGD
$2,413 USD
View
B
Retailer 11
-
$3,417 SGD
$2,673 USD
View
Most Expensive
MOH London
LG492136381 · Oct 19
$4,332 SGD
£2,668 GBP
View
Price last confirmed 12 days ago
11 more retailers have this diamond
Prices start from $844 SGDSave up to $2,573 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
1.15ct Round
$844 SGD