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Round|Lab Grown|IGI

1.27ct D VS1 Round Lab Grown Diamond

EX • D/VS1 • IGI LG818678012

Shape and cutting style on the report: Round brilliant

Certificate IGI LG818678012

Diamond specifications and retailer prices

From $279 AUD
As of November 5, 2026
Save $1,403 AUD (83%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,993 AUD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.27ct lab-grown round diamond

This 1.27ct lab-grown round sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and VS1 clarity (very-slightly-included), with a top-tier cut grade and certified by IGI LG818678012 or 818678012. Listed at 23 retailers as of November 4, 2026, with a 504% 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

1.27
Carat
D
Colour
VS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818678012
Dimensions7.02 × 6.98 × 4.17 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
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
7.02 mm6.98 mm1.27 ctD / VS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818678012
Side View
Table 63.0%Crown 34.2°Girdle: MED-STKPavilion 40.5°Culet: NoneDepth 59.5%

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: Nov 5
Current: $581 AUD|Low: $267 AUD|High: $1,633 AUD|Avg: $676 AUD|-1.0%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
November 5, 2026
Retailer 12$279 AUD
Retailer 11$310 AUD
Retailer 4$346 AUD
Retailer 3$464 AUD
Retailer 1$581 AUD
Retailer 10$596 AUD
Retailer 5$621 AUD
Retailer 8$636 AUD
Retailer 2$764 AUD
Retailer 9$840 AUD
Retailer 7$1,113 AUD
Retailer 6$1,608 AUD

42 data points across 12 retailers

23 retailers$279 AUD to $1,681 AUD

A
Cheapest Retailer
-
$279 AUD
A
Retailer 2
-
$310 AUD
View
Final sale: no returns
A
Retailer 3
-
$323 AUD
View
Retailer 4
-
$346 AUD
View
Price last confirmed 12 days ago
A
Retailer 5
-
$346 AUD
View
A
Retailer 6
-
$383 AUD
View
B+
Retailer 7
-
$464 AUD
View
A
Retailer 8
-
$581 AUD
View
A
Retailer 9
-
$596 AUD
View
A
Retailer 10
-
$610 AUD
View
B+
Retailer 11
-
$621 AUD
View
B+
Retailer 12
-
$636 AUD
View
Retailer 13
-
$764 AUD
View
Price last confirmed 18 days ago
B+
Retailer 14
-
$840 AUD
View
B+
Retailer 15
-
$897 AUD
View
B
Retailer 16
-
$1,110 AUD
View
B
Retailer 17
-
$1,113 AUD
View
B
Retailer 18
-
$1,121 AUD
View
B
Retailer 19
-
$1,164 AUD
View
B
Retailer 20
-
$1,186 AUD
View
B
Retailer 21
-
$1,608 AUD
View
B
Retailer 22
-
$1,681 AUD
View
Most Expensive
Queensmith
LG818678012 · Oct 27
$2,993 AUD
£1,650 GBP
View
Price under review
22 more retailers have this diamond
Prices start from $279 AUDSave up to $1,403 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
1.27ct Round
$279 AUD