Princess|Lab Grown|IGI

1.28ct D FL Princess Lab Grown Diamond

EX • D/FL • IGI LG799677044

Shape and cutting style on the report: Princess cut

Certificate IGI LG799677044

Diamond specifications and retailer prices

From $475 USD
As of October 30, 2026
Save $3,745 USD (89%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $4,220 USD at Do Amore Diamonds · As of October 30, 2026
View at Do Amore Diamonds

About this 1.28ct lab-grown princess diamond

This 1.28ct lab-grown princess sits in the one-and-a-quarter to one-and-a-half carat band, graded D colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG799677044 or 799677044. Listed at 20 retailers as of October 30, 2026, with prices from $475 to $4,220, a $3,745 spread on the same certified stone. Do Amore Diamonds lists it at $4,220. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.28
Carat
D
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle45.9°
Pavilion angle37.6°
OriginLab Grown
Grading LabIGI
CertificateIGI LG799677044
Dimensions5.96 × 5.95 × 4.22 mm
L/W Ratio1.00
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
5.96 mm5.95 mm1.28 ctD / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG799677044
Side View
Table 68.0%Crown 45.9°Girdle: MediumPavilion 37.6°Culet: NoneDepth 70.9%

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: $4,220 USD|Low: $412 USD|High: $4,590 USD|Avg: $1,376 USD|-8.1%
Do Amore Diamonds
Retailer 2
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Retailer 21
October 30, 2026
Retailer 6$475 USD
Retailer 7$531 USD
Retailer 17$532 USD
Retailer 20$589 USD
Retailer 12$641 USD
Retailer 5$712 USD
Retailer 16$730 USD
Retailer 11$781 USD
Retailer 3$814 USD
Retailer 8$919 USD
Retailer 2$1,007 USD
Retailer 14$1,046 USD
Retailer 15$1,117 USD
Retailer 18$1,582 USD
Retailer 19$1,709 USD
Retailer 21$1,890 USD
Retailer 9$2,058 USD
Retailer 4$2,229 USD
Retailer 10$2,262 USD
Retailer 13$2,727 USD
Do Amore Diamonds$4,220 USD

42 data points across 21 retailers

20 retailers$475 USD to $4,220 USD

A
Cheapest Retailer
-
$475 USD
A
Retailer 2
-
$531 USD
View
Final sale: no returns
A
Retailer 3
-
$532 USD
View
A
Retailer 4
-
$589 USD
View
Retailer 5
-
$641 USD
View
Price last confirmed 14 days ago
A
Retailer 6
-
$712 USD
View
A
Retailer 7
-
$730 USD
View
A
Retailer 8
-
$781 USD
HK$6,100 HKD
View
A
Retailer 9
-
$814 USD
View
A
Retailer 10
-
$919 USD
View
A
Retailer 11
-
$1,007 USD
£793 GBP
View
A
Retailer 12
-
$1,117 USD
ZAR 18,038 ZAR
View
B+
Retailer 13
-
$1,582 USD
View
B+
Retailer 14
-
$1,709 USD
View
B+
Retailer 15
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$1,890 USD
£1,488 GBP
View
B
Retailer 16
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$2,058 USD
View
B+
Retailer 17
-
$2,229 USD
View
B+
Retailer 18
-
$2,262 USD
SGD 3,057 SGD
View
B
Retailer 19
-
$2,727 USD
£2,147 GBP
View
Most Expensive
B
Do Amore Diamonds
27-3AE23D609 · Oct 30
$4,220 USD
View
19 more retailers have this diamond
Prices start from $475 USDSave up to $3,745 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
1.28ct Princess
$475 USD