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Round|Lab Grown|GIA

1.28ct D SI2 Round Lab Grown Diamond

ID • D/SI2 • GIA 2239201942

Certificate GIA 2239201942

Diamond specifications and retailer prices

From $1,230 USD
£969 GBP
As of October 30, 2026
1 retailer carries this diamond
Only listing: $1,230 USD at 77 Diamonds
Only one retailer lists this diamond right now, and it is shown above, so there is nothing to unlock. Similar diamonds are carried by several retailers.
View at 77 Diamonds

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 SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2239201942. Listed at a single retailer as of October 30, 2026. If it later appears at another store, Carat Hunter will surface the price comparison automatically. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.28
Carat
D
Color
SI2
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginLab Grown
Grading LabGIA
CertificateGIA 2239201942
Dimensions7.01 × 7.06 × 4.27 mm
L/W Ratio1.01
Top View
7.01 mm7.06 mm1.28 ctD / SI2
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2239201942
Side View
Table 56.0%CrownGirdlePavilionCuletDepth 60.7%

Caratlytics Score

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B
Good
Decent quality, room for better deals
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Price History

Last verified: Oct 30
Current: $1,230 USD|Low: $1,173 USD|High: $1,230 USD|Avg: $1,195 USD|+4.9%
October 30, 2026
77 Diamonds$1,230 USD

34 data points across 1 retailer

1 retailer

B
77 Diamonds
RBPUIFSPR8TWAJV · Oct 30
$1,230 USD
£969 GBP
View

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.

B
1.28ct Round
$1,230 USD