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1.51ct H SI2 Round Natural Diamond

EX • H/SI2 • GIA 2245018446

Certificate GIA 2245018446

Diamond specifications and retailer prices

From $4,277 SGD
As of October 31, 2026
Save $3,446 SGD (45%) vs most expensive(unlock to see where)
9 retailers carry this diamond
Most expensive: $7,723 SGD at Wholesale Diamonds Direct · As of October 26, 2026
View at Wholesale Diamonds Direct

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded H colour (near-colourless) and SI2 clarity (slightly-included), with a top-tier cut grade and certified by GIA 2245018446. Listed at 9 retailers as of October 26, 2026, with prices from $4,277 to $7,723, a $3,446 spread on the same certified stone. Wholesale Diamonds Direct lists it at $7,723. 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

1.51
Carat
H
Colour
SI2
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle36°
Pavilion angle41.2°
OriginNatural
Grading LabGIA
CertificateGIA 2245018446
Dimensions7.27 × 4.58 × 4.58 mm
L/W Ratio1.59
Culet sizeNone
Top View
7.27 mm4.58 mm1.51 ctH / SI2
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 2245018446
Side View
Table 58.0%Crown 36°Girdle: THN-STKPavilion 41.2°Culet: NoneDepth 62.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: $5,589 SGD|Low: $4,277 SGD|High: $8,253 SGD|Avg: $5,563 SGD|-2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Wholesale Diamonds Direct
November 1, 2026
Retailer 5$4,277 SGD
Retailer 3$4,487 SGD
Retailer 7$4,584 SGD
Retailer 2$4,864 SGD
Retailer 6$5,419 SGD
Retailer 1$5,589 SGD
Retailer 4$5,707 SGD
Wholesale Diamonds Direct$7,723 SGD

45 data points across 8 retailers

9 retailers$4,277 SGD to $7,723 SGD

A
Cheapest Retailer
-
$4,277 SGD
A
Retailer 2
-
$4,487 SGD
$3,510 USD
View
A
Retailer 3
-
$4,584 SGD
View
A
Retailer 4
-
$4,864 SGD
£2,996 GBP
View
A
Retailer 5
-
$5,419 SGD
$4,239 USD
View
A
Retailer 6
-
$5,589 SGD
€4,164 EUR
View
A
Retailer 7
-
$5,707 SGD
£3,515 GBP
View
B+
Retailer 8
-
$7,278 SGD
$5,693 USD
View
Most Expensive
B+
Wholesale Diamonds Direct
472895024 · Oct 26
$7,723 SGD
$6,041 USD
View
8 more retailers have this diamond
Prices start from $4,277 SGDSave up to $3,446 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
1.51ct Round
$4,277 SGD