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Round|Lab Grown|IGI

1.21ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG784650873

Shape and cutting style on the report: Round brilliant

Certificate IGI LG784650873

Diamond specifications and retailer prices

From $921 AUD
$647 USD
As of October 29, 2026
Save $3,604 AUD (80%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: $4,525 AUD at MOH London · As of October 29, 2026
View at MOH London

About this 1.21ct lab-grown round diamond

This 1.21ct lab-grown round sits in the classic one-carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG784650873 or 784650873. Listed at 21 retailers as of October 29, 2026, with prices from $921 to $4,525, a $3,604 spread on the same certified stone. MOH London lists it at $4,525. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.21
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.8°
Pavilion angle40.8°
OriginLab Grown
Grading LabIGI
CertificateIGI LG784650873
Dimensions6.88 × 6.92 × 4.20 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS As Grown - No indication of post-growth treatment This Laboratory Grown Diamond was created by High Pressure High Temperature (HPHT) growth process Type II
Top View
6.88 mm6.92 mm1.21 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG784650873
Side View
Table 57.0%Crown 34.8°Girdle: MediumPavilion 40.8°Culet: NoneDepth 60.9%

Caratlytics Score

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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 29
Current: $4,525 AUD|Low: $1,002 AUD|High: $5,050 AUD|Avg: $2,320 AUD|-10.3%
MOH London
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
October 30, 2026
Retailer 16$1,002 AUD
Retailer 6$1,031 AUD
Retailer 4$1,204 AUD
Retailer 15$1,239 AUD
Retailer 11$1,324 AUD
Retailer 14$1,399 AUD
Retailer 2$1,702 AUD
Retailer 9$1,738 AUD
Retailer 8$1,745 AUD
Retailer 10$1,963 AUD
Retailer 12$2,729 AUD
Retailer 7$3,602 AUD
Retailer 5$3,687 AUD
Retailer 3$3,731 AUD
Retailer 13$3,886 AUD
MOH London$4,525 AUD

42 data points across 16 retailers

21 retailers$921 AUD to $4,525 AUD

A
Cheapest Retailer
-
$921 AUD
$647 USD
A
Retailer 2
-
$1,002 AUD
$704 USD
View
B+
Retailer 3
-
$1,031 AUD
$724 USD
View
Final sale: no returns
Retailer 4
-
$1,069 AUD
$751 USD
View
Price last confirmed 14 days ago
B+
Retailer 5
-
$1,069 AUD
$751 USD
View
B+
Retailer 6
-
$1,204 AUD
$846 USD
View
B+
Retailer 7
-
$1,239 AUD
HK$6,800 HKD
View
B+
Retailer 8
-
$1,324 AUD
$930 USD
View
B+
Retailer 9
-
$1,399 AUD
$983 USD
View
B+
Retailer 10
-
$1,702 AUD
£941 GBP
View
B+
Retailer 11
-
$1,738 AUD
€1,163 EUR
View
B+
Retailer 12
-
$1,745 AUD
$1,226 USD
View
B+
Retailer 13
-
$1,963 AUD
ZAR 22,281 ZAR
View
Retailer 14
-
$2,229 AUD
$1,566 USD
View
Price last confirmed 75 days ago
B
Retailer 15
-
$2,729 AUD
$1,917 USD
View
B
Retailer 16
-
$3,005 AUD
$2,111 USD
View
B
Retailer 17
-
$3,602 AUD
SGD 3,419 SGD
View
B
Retailer 18
-
$3,687 AUD
$2,590 USD
View
B
Retailer 19
-
$3,731 AUD
$2,620 USD
View
B
Retailer 20
-
$3,886 AUD
$2,730 USD
View
Most Expensive
B
MOH London
LG784650873 · Oct 29
$4,525 AUD
£2,503 GBP
View
20 more retailers have this diamond
Prices start from $921 AUDSave up to $3,604 AUD

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
1.21ct Round
$921 AUD