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Round|Lab Grown|IGI

1.20ct I SI1 Round Lab Grown Diamond

ID • I/SI1 • IGI LG440011908

Shape and cutting style on the report: Round brilliant

Certificate IGI LG440011908

Diamond specifications and retailer prices

From $678 SGD
$530 USD
As of October 31, 2026
Save $5,841 SGD (90%) vs most expensive(unlock to see where)
13 retailers carry this diamond
Most expensive: $6,519 SGD at MOH London · As of November 1, 2026
View at MOH London

About this 1.2ct lab-grown round diamond

This 1.2ct lab-grown round sits in the classic one-carat band, graded I colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG440011908 or 440011908. Listed at 13 retailers as of October 31, 2026, with prices from $678 to $6,519, a $5,841 spread on the same certified stone. MOH London lists it at $6,519. 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

1.20
Carat
I
Colour
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginLab Grown
Grading LabIGI
CertificateIGI LG440011908
Dimensions6.74 × 6.77 × 4.22 mm
L/W Ratio1.00
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
6.74 mm6.77 mm1.20 ctI / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG440011908
Side View
Table 58.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 62.5%

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: Oct 31
Current: $6,519 SGD|Low: $678 SGD|High: $6,606 SGD|Avg: $2,708 SGD
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 6$678 SGD
Retailer 5$1,749 SGD
Retailer 11$1,904 SGD
Retailer 10$1,959 SGD
Retailer 7$2,029 SGD
Retailer 9$2,029 SGD
Retailer 2$2,656 SGD
Retailer 8$3,206 SGD
Retailer 4$3,442 SGD
Retailer 3$3,803 SGD
MOH London$6,519 SGD

45 data points across 11 retailers

13 retailers$678 SGD to $6,519 SGD

A
Cheapest Retailer
-
$678 SGD
$530 USD
B+
Retailer 2
-
$1,749 SGD
$1,368 USD
View
B+
Retailer 3
-
$1,904 SGD
$1,489 USD
View
B+
Retailer 4
-
$1,959 SGD
$1,532 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,029 SGD
$1,587 USD
View
Retailer 6
-
$2,029 SGD
$1,587 USD
View
Price last confirmed 19 days ago
B
Retailer 7
-
$2,250 SGD
$1,760 USD
View
B+
Retailer 8
-
$2,656 SGD
£1,636 GBP
View
B
Retailer 9
-
$3,206 SGD
$2,508 USD
View
B
Retailer 10
-
$3,442 SGD
€2,564 EUR
View
B
Retailer 11
-
$3,782 SGD
$2,958 USD
View
B
Retailer 12
-
$3,803 SGD
$2,975 USD
View
Most Expensive
B
MOH London
LG440011908 · Nov 1
$6,519 SGD
£4,015 GBP
View
12 more retailers have this diamond
Prices start from $678 SGDSave up to $5,841 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
1.20ct Round
$678 SGD