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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 $239 USD
As of October 30, 2026
Save $1,211 USD (84%) vs most expensive(unlock to see where)
26 retailers carry this diamond
Most expensive: $1,480 USD 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
Color
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: $1,480 USD|Low: $239 USD|High: $2,550 USD|Avg: $801 USD|-1.0%
Novita Diamonds
Retailer 2
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Retailer 24
October 31, 2026
Retailer 5$239 USD
Retailer 2$277 USD
Retailer 24$278 USD
Retailer 4$297 USD
Retailer 11$346 USD
Retailer 10$420 USD
Retailer 20$498 USD
Retailer 22$510 USD
Retailer 8$529 USD
Retailer 13$558 USD
Retailer 12$601 USD
Retailer 15$651 USD
Retailer 18$668 USD
Retailer 23$724 USD
Retailer 16$838 USD
Retailer 6$954 USD
Retailer 7$958 USD
Retailer 14$1,007 USD
Retailer 17$1,093 USD
Retailer 21$1,196 USD
Retailer 3$1,280 USD
Retailer 9$1,320 USD
Retailer 19$1,450 USD
Novita Diamonds$1,480 USD

32 data points across 24 retailers

26 retailers$239 USD to $1,450 USD

A+
Cheapest Retailer
-
$239 USD
A
Retailer 2
-
$277 USD
View
Final sale: no returns
A
Retailer 3
-
$278 USD
View
A
Retailer 4
-
$297 USD
View
A
Retailer 5
-
$346 USD
HK$2,700 HKD
View
A
Retailer 6
-
$420 USD
View
A
Retailer 7
-
$498 USD
€474 EUR
View
A
Retailer 8
-
$510 USD
ZAR 8,241 ZAR
View
A
Retailer 9
-
$529 USD
View
Retailer 10
-
$548 USD
£432 GBP
View
Price last confirmed 15 days ago
A
Retailer 11
-
$558 USD
£439 GBP
View
A
Retailer 12
-
$601 USD
View
Retailer 13
-
$651 USD
View
Price last confirmed 7 days ago
B+
Retailer 14
-
$668 USD
A$1,028 AUD
View
B+
Retailer 15
-
$724 USD
A$1,114 AUD
View
B+
Retailer 16
-
$838 USD
SGD 1,133 SGD
View
B+
Retailer 17
-
$954 USD
View
B+
Retailer 18
-
$958 USD
View
B+
Retailer 19
-
$1,007 USD
View
B
Retailer 20
-
$1,093 USD
View
B+
Retailer 21
-
$1,196 USD
£942 GBP
View
B
Retailer 22
-
$1,280 USD
View
B
Retailer 23
-
$1,320 USD
View
Retailer 24
-
$1,328 USD
View
Price last confirmed 82 days ago
B
Retailer 25
-
$1,450 USD
View
Most Expensive
Novita Diamonds
cert_643452185 · Oct 8
$1,480 USD
A$2,277 AUD
View
Price last confirmed 23 days ago
25 more retailers have this diamond
Prices start from $239 USDSave up to $1,211 USD

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
$239 USD