Round|Lab Grown|IGI

1.28ct D FL Round Lab Grown Diamond

ID • D/FL • IGI LG823694958

Shape and cutting style on the report: Round brilliant

Certificate IGI LG823694958

Diamond specifications and retailer prices

From $666 USD
As of October 29, 2026
Save $2,604 USD (80%) vs most expensive(unlock to see where)
20 retailers carry this diamond
Most expensive: $3,270 USD at MOH London · As of October 29, 2026
View at MOH London

About this 1.28ct lab-grown round diamond

This 1.28ct lab-grown round 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 LG823694958 or 823694958. Listed at 20 retailers as of October 29, 2026, with prices from $666 to $3,270, a $2,604 spread on the same certified stone. MOH London lists it at $3,270. 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
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle34.3°
Pavilion angle40.7°
OriginLab Grown
Grading LabIGI
CertificateIGI LG823694958
Dimensions6.95 × 6.98 × 4.25 mm
L/W Ratio1.00
Girdle conditionFaceted
Cert comments
HEARTS & ARROWS 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
6.95 mm6.98 mm1.28 ctD / FL
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG823694958
Side View
Table 58.0%Crown 34.3°Girdle: MediumPavilion 40.7°Culet: NoneDepth 61.0%

Caratlytics Score

How it works →
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 29
Current: $3,270 USD|Low: $639 USD|High: $3,809 USD|Avg: $1,628 USD|-13.1%
MOH London
Retailer 2
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Retailer 20
October 29, 2026
Retailer 19$666 USD
Retailer 3$724 USD
Retailer 7$745 USD
Retailer 6$772 USD
Retailer 8$772 USD
Retailer 20$896 USD
Retailer 4$925 USD
Retailer 15$950 USD
Retailer 2$1,227 USD
Retailer 13$1,256 USD
Retailer 5$1,257 USD
Retailer 14$1,419 USD
Retailer 16$1,615 USD
Retailer 17$1,972 USD
Retailer 10$2,171 USD
Retailer 11$2,600 USD
Retailer 12$2,663 USD
Retailer 9$2,679 USD
Retailer 18$2,880 USD
MOH London$3,270 USD

38 data points across 20 retailers

20 retailers$666 USD to $3,270 USD

A
Cheapest Retailer
-
$666 USD
A
Retailer 2
-
$724 USD
View
A
Retailer 3
-
$745 USD
View
Final sale: no returns
A
Retailer 4
-
$772 USD
View
A
Retailer 5
-
$772 USD
View
Price last confirmed 13 days ago
B+
Retailer 6
-
$896 USD
HK$7,000 HKD
View
B+
Retailer 7
-
$925 USD
View
B+
Retailer 8
-
$950 USD
View
B+
Retailer 9
-
$1,227 USD
£966 GBP
View
B+
Retailer 10
-
$1,256 USD
€1,196 EUR
View
B+
Retailer 11
-
$1,257 USD
View
B+
Retailer 12
-
$1,419 USD
ZAR 22,926 ZAR
View
B+
Retailer 13
-
$1,615 USD
View
Price last confirmed 8 days ago
B
Retailer 14
-
$1,972 USD
View
B
Retailer 15
-
$2,171 USD
View
B
Retailer 16
-
$2,600 USD
SGD 3,513 SGD
View
B
Retailer 17
-
$2,663 USD
View
B
Retailer 18
-
$2,679 USD
View
B
Retailer 19
-
$2,880 USD
View
Most Expensive
B
MOH London
LG823694958 · Oct 29
$3,270 USD
£2,575 GBP
View
19 more retailers have this diamond
Prices start from $666 USDSave up to $2,604 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 Round
$666 USD