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Marquise|Lab Grown|IGI

1.05ct D IF Marquise Lab Grown Diamond

ID • D/IF • IGI LG643452185

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG643452185

Diamond specifications and retailer prices

From $340 AUD
$239 USD
As of October 30, 2026
Save $1,724 AUD (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $2,107 AUD at Novita Diamonds · As of October 8, 2026
View at Novita Diamonds

About this 1.05ct lab-grown marquise diamond

This 1.05ct lab-grown marquise sits in the classic one-carat band, graded D colour (colourless) and IF clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG643452185 or 643452185. Listed at 26 retailers as of October 30, 2026, with a 507% 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

1.05
Carat
D
Colour
IF
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG643452185
Dimensions10.71 × 5.30 × 3.31 mm
L/W Ratio2.02
Girdle conditionFaceted
Culet sizePointed
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
10.71 mm5.30 mm1.05 ctD / IF
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG643452185
Side View
Table 59.0%Crown 34.3°Girdle: MED-STKPavilion 40.6°Culet: NoneDepth 62.5%

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: $2,107 AUD|Low: $340 AUD|High: $3,630 AUD|Avg: $1,140 AUD|-1.0%
Novita Diamonds
Retailer 2
Retailer 3
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Retailer 5
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Retailer 7
Retailer 8
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Retailer 11
Retailer 12
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Retailer 24
October 31, 2026
Retailer 5$340 AUD
Retailer 2$394 AUD
Retailer 24$396 AUD
Retailer 4$423 AUD
Retailer 11$492 AUD
Retailer 10$598 AUD
Retailer 20$709 AUD
Retailer 22$726 AUD
Retailer 8$753 AUD
Retailer 13$794 AUD
Retailer 12$856 AUD
Retailer 15$927 AUD
Retailer 18$951 AUD
Retailer 23$1,031 AUD
Retailer 16$1,194 AUD
Retailer 6$1,358 AUD
Retailer 7$1,364 AUD
Retailer 14$1,433 AUD
Retailer 17$1,556 AUD
Retailer 21$1,703 AUD
Retailer 3$1,822 AUD
Retailer 9$1,878 AUD
Retailer 19$2,064 AUD
Novita Diamonds$2,107 AUD

32 data points across 24 retailers

26 retailers$340 AUD to $2,064 AUD

A+
Cheapest Retailer
-
$340 AUD
$239 USD
A
Retailer 2
-
$394 AUD
$277 USD
View
Final sale: no returns
A
Retailer 3
-
$396 AUD
$278 USD
View
A
Retailer 4
-
$423 AUD
$297 USD
View
A
Retailer 5
-
$492 AUD
HK$2,700 HKD
View
A
Retailer 6
-
$598 AUD
$420 USD
View
A
Retailer 7
-
$709 AUD
€474 EUR
View
A
Retailer 8
-
$726 AUD
ZAR 8,241 ZAR
View
A
Retailer 9
-
$753 AUD
$529 USD
View
Retailer 10
-
$780 AUD
£432 GBP
View
Price last confirmed 17 days ago
A
Retailer 11
-
$794 AUD
£439 GBP
View
A
Retailer 12
-
$856 AUD
$601 USD
View
Retailer 13
-
$927 AUD
$651 USD
View
Price last confirmed 8 days ago
B+
Retailer 14
-
$951 AUD
View
B+
Retailer 15
-
$1,031 AUD
View
B+
Retailer 16
-
$1,194 AUD
SGD 1,133 SGD
View
B+
Retailer 17
-
$1,358 AUD
$954 USD
View
B+
Retailer 18
-
$1,364 AUD
$958 USD
View
B+
Retailer 19
-
$1,433 AUD
$1,007 USD
View
B
Retailer 20
-
$1,556 AUD
$1,093 USD
View
B+
Retailer 21
-
$1,703 AUD
£942 GBP
View
B
Retailer 22
-
$1,822 AUD
$1,280 USD
View
B
Retailer 23
-
$1,878 AUD
$1,320 USD
View
Retailer 24
-
$1,890 AUD
$1,328 USD
View
Price last confirmed 83 days ago
B
Retailer 25
-
$2,064 AUD
$1,450 USD
View
Most Expensive
Novita Diamonds
cert_643452185 · Oct 8
$2,107 AUD
View
Price last confirmed 24 days ago
25 more retailers have this diamond
Prices start from $340 AUDSave up to $1,724 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+
1.05ct Marquise
$340 AUD