Round|Natural|GIA

1.28ct I VVS1 Round Natural Diamond

VG • I/VVS1 • GIA 2151635387

Certificate GIA 2151635387

Diamond specifications and retailer prices

From $5,948 SGD
$4,653 USD
As of October 31, 2026
Save $2,225 SGD (27%) vs most expensive(unlock to see where)
6 retailers carry this diamond
Most expensive: $8,173 SGD at Yorxs · As of October 31, 2026
View at Yorxs

About this 1.28ct natural round diamond

This 1.28ct natural round sits in the one-and-a-quarter to one-and-a-half carat band, graded I colour (near-colourless) and VVS1 clarity (very-very-slightly-included), with a very-good cut grade and certified by GIA 2151635387. Listed at 6 retailers as of October 31, 2026, with prices from $5,948 to $8,173, a $2,225 spread on the same certified stone. Yorxs lists it at $8,173. Cut grade matters more than carat or clarity for visible brilliance. If you can shift budget toward an Excellent or Ideal cut, do it before chasing higher colour or clarity.

The 4Cs

1.28
Carat
I
Colour
VVS1
Clarity
Very Good
Cut

Specifications

CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 2151635387
Dimensions6.87 × 6.98 × 4.38 mm
L/W Ratio1.02
Top View
6.87 mm6.98 mm1.28 ctI / VVS1
OriginNatural
CutVery Good
PolishVery Good
SymmetryGood
FluorescenceNone
CertificateGIA 2151635387
Side View
Table 57.0%CrownGirdle: THN-STKPavilionCulet: NoneDepth 63.3%

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 31
Current: $8,149 SGD|Low: $5,869 SGD|High: $8,252 SGD|Avg: $7,348 SGD|+1.1%
Retailer 1
Retailer 2
Yorxs
October 31, 2026
Retailer 2$5,948 SGD
Retailer 1$8,149 SGD
Yorxs$8,173 SGD

31 data points across 3 retailers

6 retailers$5,948 SGD to $8,173 SGD

A
Cheapest Retailer
-
$5,948 SGD
$4,653 USD
A
Retailer 2
-
$6,078 SGD
$4,754 USD
View
A
Retailer 3
-
$6,255 SGD
$4,893 USD
View
A
Retailer 4
-
$6,332 SGD
$4,953 USD
View
B+
Retailer 5
-
$8,149 SGD
£5,019 GBP
View
Most Expensive
B+
Yorxs
RB4548 · Oct 31
$8,173 SGD
€6,089 EUR
View
5 more retailers have this diamond
Prices start from $5,948 SGDSave up to $2,225 SGD

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
$5,948 SGD