Radiant|Natural|GIA

1.51ct D SI1 Radiant Natural Diamond

EX • D/SI1 • GIA 2556104237

Certificate GIA 2556104237

Diamond specifications and retailer prices

From $6,251 USD
Save $7,389 USD (54%) vs most expensive(unlock to see where)
23 retailers carry this diamond
Most expensive: $13,640 USD at NZ Jewellers
View at NZ Jewellers

About this 1.51ct natural radiant diamond

This 1.51ct natural radiant sits in the one-and-a-half to two carat band, graded D colour (colourless) and SI1 clarity (slightly-included), with a top-tier cut grade stated by the retailer rather than the lab and certified by GIA 2556104237. Listed at 23 retailers, with prices from $6,251 to $13,640 at NZ Jewellers, a $7,389 spread on the same certified stone. 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
D
Color
SI1
Clarity
Excellent
Cut (retailer stated)

Specifications

Cut (retailer stated)Excellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
OriginNatural
Grading LabGIA
CertificateGIA 2556104237
Dimensions7.71 × 5.84 × 3.97 mm
L/W Ratio1.32
Top View
7.71 mm5.84 mm1.51 ctD / SI1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceFaint
CertificateGIA 2556104237
Side View
Table 69.0%CrownGirdle: STK-THKPavilionCulet: NoneDepth 67.9%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0-100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 1
Current: $11,201 USD|Low: $4,326 USD|High: $11,502 USD|Avg: $7,836 USD|+1.0%
Retailer 1
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Retailer 24
October 1, 2026
Retailer 13$4,326 USD
Retailer 15$5,740 USD
Retailer 10$5,895 USD
Retailer 24$6,251 USD
Retailer 5$6,443 USD
Retailer 23$6,830 USD
Retailer 7$6,877 USD
Retailer 11$7,020 USD
Retailer 14$7,217 USD
Retailer 3$7,262 USD
Retailer 20$7,752 USD
Retailer 22$7,820 USD
Retailer 4$7,860 USD
Retailer 6$7,860 USD
Retailer 18$7,864 USD
Retailer 8$8,120 USD
Retailer 9$8,240 USD
Retailer 12$8,742 USD
Retailer 2$8,983 USD
Retailer 16$9,614 USD
Retailer 19$9,832 USD
Retailer 17$10,917 USD
Retailer 1$11,201 USD
Retailer 21$11,502 USD

25 data points across 24 retailers

23 retailers$6,251 USD to $13,640 USD

A
Cheapest Retailer
-
$6,251 USD
A
Retailer 2
-
$6,443 USD
View
A
Retailer 3
-
$6,820 USD
View
A
Retailer 4
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$6,830 USD
View
A
Retailer 5
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$6,877 USD
View
A
Retailer 6
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$6,894 USD
View
Price last confirmed 43 days ago
A
Retailer 7
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$7,262 USD
View
A
Retailer 8
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$7,388 USD
View
B+
Retailer 9
-
$7,502 USD
View
B+
Retailer 10
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$7,769 USD
£6,118 GBP
View
B+
Retailer 11
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$7,820 USD
View
B+
Retailer 12
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$7,860 USD
View
B+
Retailer 13
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$7,860 USD
View
B+
Retailer 14
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$7,864 USD
A$12,099 AUD
View
B+
Retailer 15
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$8,120 USD
View
Price last confirmed 12 days ago
B+
Retailer 16
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$8,240 USD
View
B+
Retailer 17
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$8,525 USD
View
B+
Retailer 18
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$8,742 USD
€8,326 EUR
View
B+
Retailer 19
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$8,983 USD
View
B
Retailer 20
-
$9,832 USD
ZAR 158,844 ZAR
View
B+
Retailer 21
-
$11,201 USD
£8,820 GBP
View
B
Retailer 22
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$11,502 USD
£9,057 GBP
View
Most Expensive
B
NZ Jewellers
532baf5e-fe99-4a82-bc63-700d4989dbfb · Sep 30
$13,640 USD
View
22 more retailers have this diamond
Prices start from $6,251 USDSave up to $7,389 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.

A
1.51ct Radiant
$6,251 USD