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Marquise|Lab Grown|IGI

1.20ct D IF Marquise Lab Grown Diamond

EX • D/IF • IGI LG825687968

Shape and cutting style on the report: Marquise brilliant

Certificate IGI LG825687968

Diamond specifications and retailer prices

From $277 USD
As of October 30, 2026
Save $2,022 USD (88%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $2,299 USD at Queensmith · As of October 27, 2026
View at Queensmith

About this 1.2ct lab-grown marquise diamond

This 1.2ct 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 LG825687968 or 825687968. Listed at 23 retailers as of October 27, 2026, with prices from $277 to $2,299, a $2,022 spread on the same certified stone. Queensmith lists it at $2,299. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.20
Carat
D
Color
IF
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle40.3°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825687968
Dimensions11.19 × 5.42 × 3.48 mm
L/W Ratio2.06
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
11.19 mm5.42 mm1.20 ctD / IF
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825687968
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 40.3°Culet: NoneDepth 64.2%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: $2,299 USD|Low: $247 USD|High: $2,299 USD|Avg: $999 USD
Queensmith
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 9$309 USD
Retailer 15$384 USD
Retailer 11$472 USD
Retailer 14$500 USD
Retailer 16$565 USD
Retailer 13$591 USD
Retailer 2$606 USD
Retailer 8$767 USD
Retailer 12$837 USD
Retailer 3$1,057 USD
Retailer 6$1,105 USD
Retailer 7$1,156 USD
Retailer 5$1,219 USD
Retailer 17$1,380 USD
Retailer 10$1,440 USD
Retailer 18$1,465 USD
Retailer 4$1,687 USD
Queensmith$2,299 USD

41 data points across 18 retailers

23 retailers$277 USD to $2,299 USD

A
Cheapest Retailer
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$277 USD
A
Retailer 2
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$309 USD
View
Final sale: no returns
A
Retailer 3
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$322 USD
View
A
Retailer 4
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$344 USD
View
A
Retailer 5
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$344 USD
View
A
Retailer 6
-
$384 USD
HK$3,000 HKD
View
A
Retailer 7
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$472 USD
View
A
Retailer 8
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$500 USD
View
A
Retailer 9
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$565 USD
€538 EUR
View
A
Retailer 10
-
$591 USD
ZAR 9,547 ZAR
View
A
Retailer 11
-
$606 USD
£477 GBP
View
B+
Retailer 12
-
$767 USD
View
B+
Retailer 13
-
$837 USD
A$1,288 AUD
View
B+
Retailer 14
-
$1,057 USD
View
B+
Retailer 15
-
$1,105 USD
SGD 1,493 SGD
View
B+
Retailer 16
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$1,106 USD
View
B+
Retailer 17
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$1,156 USD
View
B+
Retailer 18
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$1,219 USD
View
B+
Retailer 19
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$1,380 USD
£1,087 GBP
View
B
Retailer 20
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$1,440 USD
View
B+
Retailer 21
-
$1,465 USD
View
Retailer 22
-
$1,687 USD
A$2,596 AUD
View
Price last confirmed 23 days ago
Most Expensive
B
Queensmith
LG825687968 · Oct 27
$2,299 USD
£1,810 GBP
View
22 more retailers have this diamond
Prices start from $277 USDSave up to $2,022 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
1.20ct Marquise
$277 USD