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Heart|Natural|GIA

1.51ct F SI1 Heart Natural Diamond

VG • F/SI1 • GIA 6392388542

Certificate GIA 6392388542

Diamond specifications and retailer prices

From $14,540 SGD
$11,369 USD
As of November 1, 2026
Save $4,908 SGD (25%) vs most expensive(unlock to see where)
10 retailers carry this diamond
Most expensive: $19,447 SGD at 77 Diamonds · As of November 2, 2026
View at 77 Diamonds

About this 1.51ct natural heart diamond

This 1.51ct natural heart sits in the one-and-a-half to two carat band, graded F colour (colourless) and SI1 clarity (slightly-included), with a very-good cut grade stated by the retailer rather than the lab and certified by GIA 6392388542. Listed at 10 retailers as of November 1, 2026, with prices from $14,540 to $19,447, a $4,908 spread on the same certified stone. 77 Diamonds lists it at $19,447. 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

1.51
Carat
F
Colour
SI1
Clarity
Very Good
Cut (retailer stated)

Specifications

Cut (retailer stated)Very Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
OriginNatural
Grading LabGIA
CertificateGIA 6392388542
Dimensions7.67 × 7.05 × 3.96 mm
L/W Ratio1.09
Top View
7.67 mm7.05 mm1.51 ctF / SI1
OriginNatural
CutVery Good
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 6392388542
Side View
Table 62.0%CrownGirdle: MED-ETKPavilionCulet: NoneDepth 56.2%

Caratlytics Score

How it works →
B
Good
Decent quality, room for better deals
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Nov 1
Current: $19,447 SGD|Low: $14,430 SGD|High: $19,574 SGD|Avg: $16,172 SGD|+1.8%
77 Diamonds
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
November 2, 2026
Retailer 2$14,540 SGD
Retailer 4$14,564 SGD
Retailer 3$15,280 SGD
Retailer 6$15,354 SGD
Retailer 7$15,780 SGD
Retailer 5$17,976 SGD
77 Diamonds$19,447 SGD

29 data points across 7 retailers

10 retailers$14,540 SGD to $19,447 SGD

B
Cheapest Retailer
-
$14,540 SGD
$11,369 USD
B
Retailer 2
-
$14,564 SGD
$11,388 USD
View
Retailer 3
-
$15,280 SGD
$11,948 USD
View
Price last confirmed 21 days ago
B
Retailer 4
-
$15,354 SGD
$12,006 USD
View
B
Retailer 5
-
$15,780 SGD
$12,339 USD
View
B
Retailer 6
-
$17,976 SGD
$14,056 USD
View
B
Retailer 7
-
$18,774 SGD
$14,680 USD
View
B
Retailer 8
-
$18,774 SGD
$14,680 USD
View
B
Retailer 9
-
$19,401 SGD
$15,170 USD
View
Most Expensive
B
77 Diamonds
HSZNTTH3B6V · Nov 2
$19,447 SGD
£11,974 GBP
View
9 more retailers have this diamond
Prices start from $14,540 SGDSave up to $4,908 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.

B
1.51ct Heart
$14,540 SGD