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Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG790612054

Shape and cutting style on the report: Round brilliant

Certificate IGI LG790612054

Diamond specifications and retailer prices

From $2,346 AUD
$1,648 USD
As of October 29, 2026
Save $2,755 AUD (54%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $8,277 AUD at Reve Diamonds · As of October 30, 2026
View at Reve Diamonds

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG790612054 or 790612054. Listed at 20 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. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Colour
FL
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle33.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG790612054
Dimensions7.04 × 7.08 × 4.25 mm
L/W Ratio1.01
Girdle conditionFaceted
Culet sizePointed
Cert comments
HEARTS & ARROWS This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.04 mm7.08 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG790612054
Side View
Table 57.0%Crown 33.3°Girdle: MED-STKPavilion 40.7°Culet: NoneDepth 60.2%

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 29
Current: $3,842 AUD|Low: $2,252 AUD|High: $9,091 AUD|Avg: $4,156 AUD|+1.4%
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
October 30, 2026
Retailer 17$2,346 AUD
Retailer 14$2,363 AUD
Retailer 7$2,553 AUD
Retailer 9$2,627 AUD
Retailer 2$2,722 AUD
Retailer 4$2,722 AUD
Retailer 6$2,903 AUD
Retailer 16$2,961 AUD
Retailer 1$3,842 AUD
Retailer 3$4,276 AUD
Retailer 12$4,299 AUD
Retailer 15$4,692 AUD
Retailer 13$4,826 AUD
Retailer 10$5,003 AUD
Retailer 8$5,101 AUD
Retailer 11$7,814 AUD
Retailer 5$9,091 AUD

44 data points across 17 retailers

20 retailers$2,346 AUD to $5,101 AUD

B+
Cheapest Retailer
-
$2,346 AUD
$1,648 USD
Retailer 2
-
$2,363 AUD
$1,660 USD
View
Price last confirmed 9 days ago
B+
Retailer 3
-
$2,553 AUD
$1,793 USD
View
B+
Retailer 4
-
$2,627 AUD
$1,845 USD
View
Final sale: no returns
B+
Retailer 5
-
$2,722 AUD
$1,912 USD
View
Retailer 6
-
$2,722 AUD
$1,912 USD
View
Price last confirmed 17 days ago
B
Retailer 7
-
$2,903 AUD
$2,039 USD
View
B+
Retailer 8
-
$2,961 AUD
$2,080 USD
View
B
Retailer 9
-
$3,134 AUD
HK$17,200 HKD
View
B
Retailer 10
-
$3,842 AUD
£2,125 GBP
View
B
Retailer 11
-
$4,276 AUD
$3,004 USD
View
B
Retailer 12
-
$4,299 AUD
€2,876 EUR
View
B
Retailer 13
-
$4,692 AUD
$3,296 USD
View
B
Retailer 14
-
$4,826 AUD
$3,390 USD
View
B
Retailer 15
-
$5,003 AUD
ZAR 56,770 ZAR
View
B
Retailer 16
-
$5,101 AUD
$3,583 USD
View
Retailer 17
-
$7,814 AUD
£4,322 GBP
View
Price under review
Most Expensive
Reve Diamonds
5B170FEB1 · Oct 30
$8,277 AUD
$5,814 USD
View
Price under review
17 more retailers have this diamond
Prices start from $2,346 AUDSave up to $2,755 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.

B+
1.28ct Round
$2,346 AUD