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Marquise|Lab Grown|GIA

1.67ct D IF Marquise Lab Grown Diamond

ID • D/IF • GIA 1518765462

Certificate GIA 1518765462

Diamond specifications and retailer prices

From $1,594 AUD
$1,120 USD
As of October 30, 2026
Save $5,253 AUD (77%) vs most expensive(unlock to see where)
11 retailers carry this diamond
Most expensive: $6,848 AUD at Brilliant Earth · As of October 30, 2026
View at Brilliant Earth

About this 1.67ct lab-grown marquise diamond

This 1.67ct lab-grown marquise sits in the one-and-a-half to two carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 1518765462. Listed at 11 retailers as of October 30, 2026, with prices from $1,594 to $6,848, a $5,253 spread on the same certified stone. Brilliant Earth lists it at $6,848. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.67
Carat
D
Colour
IF
Clarity
Ideal
Cut (retailer stated)

Specifications

Cut (retailer stated)Ideal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 1518765462
Dimensions12.61 × 6.34 × 3.79 mm
L/W Ratio1.99
Girdle conditionFaceted
Cert comments
This is a man-made diamond.
Key to symbols
Minor Details of Polish
Top View
12.61 mm6.34 mm1.67 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 1518765462
Side View
Table 61.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 59.8%

Caratlytics Score

How it works →
A+
Exceptional
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: $6,848 AUD|Low: $1,278 AUD|High: $12,216 AUD|Avg: $4,552 AUD|-3.0%
Brilliant Earth
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
October 29, 2026
Retailer 4$1,322 AUD
Retailer 7$1,594 AUD
Retailer 9$1,735 AUD
Retailer 13$1,785 AUD
Retailer 11$1,849 AUD
Retailer 2$3,753 AUD
Retailer 10$3,827 AUD
Retailer 12$4,925 AUD
Retailer 8$5,142 AUD
Retailer 3$5,519 AUD
Retailer 6$6,595 AUD
Brilliant Earth$6,848 AUD
Retailer 5$12,216 AUD

25 data points across 13 retailers

11 retailers$1,594 AUD to $6,848 AUD

A+
Cheapest Retailer
-
$1,594 AUD
$1,120 USD
A+
Retailer 2
-
$1,735 AUD
$1,219 USD
View
A
Retailer 3
-
$1,785 AUD
$1,254 USD
View
Final sale: no returns
A
Retailer 4
-
$1,849 AUD
$1,299 USD
View
B+
Retailer 5
-
$3,753 AUD
ZAR 42,591 ZAR
View
B+
Retailer 6
-
$3,827 AUD
$2,688 USD
View
B+
Retailer 7
-
$4,925 AUD
£2,724 GBP
View
B+
Retailer 8
-
$5,142 AUD
$3,612 USD
View
B
Retailer 9
-
$5,519 AUD
$3,877 USD
View
B
Retailer 10
-
$6,595 AUD
£3,648 GBP
View
Most Expensive
B
Brilliant Earth
13624762Y · Oct 30
$6,848 AUD
$4,810 USD
View
10 more retailers have this diamond
Prices start from $1,594 AUDSave up to $5,253 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+
1.67ct Marquise
$1,594 AUD