Marquise|Lab Grown|IGI

1.27ct E VVS1 Marquise Lab Grown Diamond

EX • E/VVS1 • IGI LG818660603

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG818660603

Diamond specifications and retailer prices

From $313 AUD
$220 USD
As of October 30, 2026
Save $1,476 AUD (82%) vs most expensive(unlock to see where)
24 retailers carry this diamond
Most expensive: $2,249 AUD at Brilliant Earth · As of September 28, 2026
View at Brilliant Earth

About this 1.27ct lab-grown marquise diamond

This 1.27ct lab-grown marquise sits in the one-and-a-quarter to one-and-a-half carat band, graded E colour (colourless) and VVS1 clarity (very-very-slightly-included), with a top-tier cut grade and certified by IGI LG818660603 or 818660603. Listed at 24 retailers as of October 30, 2026, with a 471% 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
E
Colour
VVS1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36.9°
Pavilion angle39.4°
OriginLab Grown
Grading LabIGI
CertificateIGI LG818660603
Dimensions11.65 × 5.56 × 3.47 mm
L/W Ratio2.10
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.65 mm5.56 mm1.27 ctE / VVS1
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG818660603
Side View
Table 61.0%Crown 36.9°Girdle: STK-THKPavilion 39.4°Culet: NoneDepth 62.4%

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 30
Current: $626 AUD|Low: $300 AUD|High: $1,789 AUD|Avg: $818 AUD
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
Retailer 18
October 31, 2026
Retailer 6$313 AUD
Retailer 4$349 AUD
Retailer 9$363 AUD
Retailer 7$387 AUD
Retailer 10$387 AUD
Retailer 2$477 AUD
Retailer 13$524 AUD
Retailer 1$626 AUD
Retailer 15$666 AUD
Retailer 11$721 AUD
Retailer 12$803 AUD
Retailer 16$948 AUD
Retailer 3$1,009 AUD
Retailer 8$1,247 AUD
Retailer 18$1,267 AUD
Retailer 14$1,466 AUD
Retailer 17$1,557 AUD
Retailer 5$1,789 AUD

39 data points across 18 retailers

24 retailers$313 AUD to $1,789 AUD

A
Cheapest Retailer
-
$313 AUD
$220 USD
A
Retailer 2
-
$349 AUD
$245 USD
View
Final sale: no returns
A
Retailer 3
-
$363 AUD
$255 USD
View
A
Retailer 4
-
$387 AUD
$272 USD
View
A
Retailer 5
-
$387 AUD
$272 USD
View
Retailer 6
-
$477 AUD
£264 GBP
View
Price last confirmed 14 days ago
B+
Retailer 7
-
$524 AUD
$368 USD
View
A
Retailer 8
-
$626 AUD
€419 EUR
View
A
Retailer 9
-
$666 AUD
ZAR 7,563 ZAR
View
A
Retailer 10
-
$721 AUD
£399 GBP
View
Retailer 11
-
$796 AUD
$559 USD
View
Price last confirmed 7 days ago
A
Retailer 12
-
$803 AUD
View
B+
Retailer 13
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$868 AUD
$610 USD
View
B+
Retailer 14
-
$948 AUD
View
B+
Retailer 15
-
$1,009 AUD
$709 USD
View
B+
Retailer 16
-
$1,247 AUD
$876 USD
View
B+
Retailer 17
-
$1,267 AUD
$890 USD
View
B+
Retailer 18
-
$1,322 AUD
$929 USD
View
B+
Retailer 19
-
$1,334 AUD
$937 USD
View
B
Retailer 20
-
$1,466 AUD
View
B
Retailer 21
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$1,519 AUD
£840 GBP
View
B
Retailer 22
-
$1,557 AUD
£861 GBP
View
B
Retailer 23
-
$1,789 AUD
$1,257 USD
View
Most Expensive
Brilliant Earth
20905909A · Sep 28
$2,249 AUD
$1,580 USD
View
Price last confirmed 33 days ago
23 more retailers have this diamond
Prices start from $313 AUDSave up to $1,476 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 Marquise
$313 AUD